Regional road (Ireland)

A regional road (bóthar réigiúnach) in the Republic of Ireland is a class of road not forming a major route (such as a national primary road or national secondary road), but nevertheless forming a link in the national route network. There are over 11,600 kilometres (7,200 miles) of regional roads. Regional roads are numbered with three-digit route numbers, prefixed by "R" (e.g. R105). The equivalent road category in Northern Ireland are B roads.

History
Until 1977, classified roads in the Republic of Ireland were designated with one of two prefixes: "T" for Trunk Roads and "L" for Link Roads. The Local Government (Roads and Motorways) Act authorised the designation of roads as National roads: in 1977, twenty-five National Primary roads (N1-N25) and thirty-three National Secondary roads (N51-N83) were initially designated under Statutory Instrument S.I. No. 164/1977.

Many of the remaining classified roads became Regional roads (formally authorised under the Roads Act 1993, having been indicated as such on road signs on a non-statutory basis for some years previously) and their routes were designated under a Statutory Instrument ('SI') in 1994. The latest SI designating the routes of Regional roads was published in 2012: the Roads Act 1993 (Classification of Regional Roads) Order 2012.

Other roads once classified as Trunk or Link roads eventually became Local roads.

Older signs showing the former Trunk and Link road designations are still to be seen in some locations. The L (for Link Road) prefix on these signs is not connected to the network of Local roads currently in place.

Features
Unlike national roads, regional roads are maintained by local county or city councils rather than the National Roads Authority. The vast majority of the regional road network is made up of single-carriageway roads although some roads are dual-carriageway (see: High-capacity regional roads below). Until the late 1990s, such roads were often in a very poor condition, although increased road maintenance funding to local councils has resulted in more frequent resurfacing of regional roads, as well as relaying and realignment on some routes.

Regional roads are generally subject to a speed limit of 80 km/h (imperial equivalent 50 mph), rather than the 100 km/h (imperial equivalent 62.5 mph) for national roads. Prior to 20 January 2005, when Ireland adopted metric speed limits, national and regional roads had identical speed limits of 60 mph. Regional roads, however, pass through towns, villages and built-up areas frequently, so even lower local speed restrictions are often in place. However, certain regional roads, often sections of former national roads which have been bypassed by motorways or other road improvements, have speed limits of 100 km/h. The R132 (former N1) is an example of a Regional road with a 100 km/h speed limit.

, directional signposting on some regional roads in Ireland remains poor, with even modern signage usually relying on fingerpost signposts located directly at junctions. However, work on improving signposting on regional roads has been continuing since 2003; routes which previously had the most deficient signposting were selected for upgrading first. In 2007, a total of "€7 million to continue progress on the regional roads signposting programme, which commenced in 2003" was granted to local authorities.

High-capacity regional roads
There are some higher-capacity (i.e. not just single-carriageway) sections of regional road, most notably the R113 (Belgard Road) and R445 (Old Naas Road), R132 Swords Inner By-pass and R136 Dublin Outer Ring Road which have sections of dual carriageway.

In some cases, important high-capacity urban routes are built or designated as regional roads, such as the mostly dual-carriageway R710 Waterford Outer Ring Road, or the R774 Greystones to the N11 link, which is dual-carriageway for its full length.

In many other cases, upgraded regional roads (for example, wide two-lane roads) were previously part of a national primary road, prior to the construction of a motorway or other bypass. In most cases, when a national primary road is changed by the creation of a bypass (motorway or other), the road previously forming part of the route is reclassified as a regional road rather than as a local road.

Route definitions
The current routes of all regional roads in Ireland – as defined by Statutory Instrument (S.I.) No 54/2012 (Classification of Regional Roads) Order 2012 under the Roads Act 1993 – are listed below. The S.I. specifies the start and end points of each route and the names of those townlands, villages, towns, and other settlements through which the route passes, as well as individual road names where necessary to establish the exact routing.

R101–R199

 * IRL R101.svg North Circular Road, Dublin
 * IRL R102.svg Blanchardstown – Malahide Road, Dublin
 * IRL R103.svg Finglas – Killester, Dublin
 * IRL R104.svg Finglas – Kilbarrack, Dublin
 * IRL R105.svg Dublin – Howth, County Dublin
 * IRL R106.svg Sutton – Malahide – Swords, County Dublin
 * IRL R107.svg Dublin – Malahide, County Dublin
 * IRL R108.svg Dublin – Naul, County Dublin – Drogheda. County Louth
 * IRL R109.svg Chapelizod – Wolf Tone Quay, Dublin
 * IRL R110.svg St Stephen's Green – Red Cow, Dublin
 * IRL R111.svg Conyngham Road – Beach Road, Sandymount, Dublin
 * IRL R112.svg Chapelizod – Churchtown – Mount Merrion, County Dublin
 * IRL R113.svg Fonthill – Blackrock, County Dublin
 * IRL R114.svg Dublin – Rathfarnham – Brittas, County Dublin
 * IRL R115.svg Rathfarnham, County Dublin – Laragh, County Wicklow
 * IRL R116.svg Ballyboden – Loughlinstown, County Dublin
 * IRL R117.svg Dublin – Enniskerry – Kilcroney, County Wicklow
 * IRL R118.svg Dublin – Blackrock, County Dublin and Dún Laoghaire – Lahaunstown, County Dublin
 * IRL R119.svg Blackrock – Dún Laoghaire, County Dublin – Bray, County Wicklow
 * IRL R120.svg Lucan – Rathcoole – Corbally, County Dublin
 * IRL R121.svg Lucan – Blanchardstown – Skephubble, County Dublin
 * IRL R122.svg Finglas – Balbriggan, County Dublin
 * IRL R123.svg Maynetown – Balgriffin, County Dublin
 * IRL R124.svg Snugborough – Malahide, County Dublin
 * IRL R125.svg Swords, County Dublin – Dunshaughlin, County Meath – Kilcock, County Kildare
 * IRL R126.svg Lissenhall – Portrane, County Dublin
 * IRL R127.svg Blakes Cross – Skerries – Balbriggan, County Dublin
 * IRL R128.svg Lusk – Rush – Skerries, County Dublin
 * IRL R129.svg Coldwinters – Wyanstown, County Dublin
 * IRL R130.svg Coolquoy Common – Grallagh, County Dublin
 * IRL R131.svg Drumcondra Road – East Link Bridge – Merrion Gates, Dublin
 * IRL R132.svg Dublin – Dundalk, County Louth (part of old National Route 1)
 * IRL R133.svg Drummartin Link Road, Sandyford, County Dublin
 * IRL R134.svg Nangor Road, Clondalkin, County Dublin
 * IRL R135.svg Dublin – Ashbourne, County Meath (part of old National Route 2)
 * IRL R136.svg Lucan – Tallaght, County Dublin (Outer Ring Road)
 * IRL R137.svg Dame Street – Tallaght, County Dublin (part of old National Route 81)
 * IRL R138.svg O'Connell Bridge – Mount Merrion Avenue, County Dublin (part of old National Route 11)
 * IRL R139.svg Clonshaugh – Baldoyle, Dublin (part of old National Route 32)
 * IRL R147.svg Dublin – Clonee – Kells – Navan – Derver, County Meath (part of old National Route 3)
 * IRL R148.svg Dublin – Kinnegad, County Westmeath (part of old National Route 4)
 * IRL R149.svg Leixlip, County Kildare – Clonee, County Meath
 * IRL R150.svg Drogheda, County Louth – Bettystown – Julianstown – Kentstown, County Meath
 * IRL R151.svg Bettystown – Mornington, County Meath
 * IRL R152.svg Drogheda, County Louth – Cushinstown, County Meath
 * IRL R153.svg Navan – Balrath, County Meath
 * IRL R154.svg Black Bull – Trim – Athboy, County Meath – Crossdoney, County Cavan
 * IRL R155.svg Piercetown – Primatestown, County Meath
 * IRL R156.svg Dunboyne – Summerhill, County Meath – The Downs, County Westmeath
 * IRL R157.svg Dunboyne, County Meath – Maynooth, County Kildare
 * IRL R158.svg Trim – Summerhill, County Meath – Kilcock, County Kildare
 * IRL R159.svg Innfield – Laracor, County Meath
 * IRL R160.svg Ballynadrumny, County Kildare – Trim, County Meath
 * IRL R161.svg Navan, County Meath – Kinnegad, County Westmeath
 * IRL R162.svg Navan, County Meath – Kingscourt, County Cavan – Monaghan
 * IRL R163.svg Ballinlough Big – Kells – Slane, County Meath
 * IRL R164.svg Ballyboy – Kells – Moynalty, County Meath – Kingscourt, County Cavan
 * IRL R165.svg Blakestown, County Louth – Kingscourt – Knockanoark – Rakenny, County Cavan
 * IRL R166.svg Mell, Louth – Drogheda – Clogherhead – Castlebellingham – Tallanstown, County Louth
 * IRL R167.svg Drogheda – Termonfeckin, County Louth
 * IRL R168.svg Drogheda – Collon, County Louth
 * IRL R169.svg Dunleer – Collon, County Louth
 * IRL R170.svg Ardee – Dunleer – Murrays Cross, County Louth
 * IRL R171.svg Ardee – Louth – Dundalk, County Louth
 * IRL R172.svg Green Gates – Blackrock – Dundalk, County Louth
 * IRL R173.svg Dundalk – Carlingford – County Bridge, County Louth
 * IRL R174.svg Feede – Rockmarshall, County Louth
 * IRL R175.svg The Bush – Greenore, County Louth
 * IRL R176.svg Carlingford – Saint James Well, County Louth
 * IRL R177.svg Dundalk – Drumbilla, County Louth
 * IRL R178.svg Dundalk, County Louth – Carrickmacross, County Monaghan – Bailieborough – Virginia, County Cavan
 * IRL R179.svg Kingscourt, County Cavan – Carrickmacross – Corcullioncrew, County Monaghan
 * IRL R180.svg Carrickmacross – Ballybay, County Monaghan
 * IRL R181.svg Shercock, County Cavan – Castleblayney – Tullynagrow, County Monaghan
 * IRL R182.svg Castleblayney – Lurganearly, County Monaghan
 * IRL R183.svg Castleblayney – Ballybay – Clones, County Monaghan
 * IRL R184.svg Clontibret – Ballybay, County Monaghan
 * IRL R185.svg Cavanreagh – Glasslough – Kiltybeggs, County Monaghan
 * IRL R186.svg Monaghan – Drumfurrer, County Monaghan
 * IRL R187.svg Annaghervy – Inishammon, County Monaghan
 * IRL R188.svg Monaghan – Cootehill, County Cavan – Cavan
 * IRL R189.svg Monaghan – Newbliss – Dyan, County Monaghan
 * IRL R190.svg Ballybay, County Monaghan – Cootehill, County Cavan
 * IRL R191.svg Mullagh – Bailieborough – Cootehill, County Cavan
 * IRL R192.svg Shercock – Cootehill, County Cavan
 * IRL R193.svg Rockcorry – Anny, County Monaghan
 * IRL R194.svg Moynalty, County Meath – Virginia, County Cavan – Longford
 * IRL R195.svg Virginia, County Cavan – Castlepollard, County Westmeath
 * IRL R196.svg New Inn – Ballyjamesduff, County Cavan
 * IRL R197.svg Belturbet – Corrarod, County Cavan
 * IRL R198.svg Cavan – Arvagh, County Cavan – Longford
 * IRL R199.svg Crossdoney, County Cavan – Ballinamore, County Leitrim

R200–R299

 * IRL R200.svg Derrynacreeve, County Cavan – Drumkeeran, County Leitrim
 * IRL R201.svg Belturbet – Killeshandra, County Cavan – Drumsna, County Leitrim
 * IRL R202.svg Dromod, County Leitrim – Derrynacreeve, County Cavan
 * IRL R203.svg Arvagh, County Cavan – Carrigallen, County Leitrim
 * IRL R204.svg Carigallen – Ballinamore, County Leitrim
 * IRL R205.svg Garadice, County Leitrim – Gortawee, County Cavan
 * IRL R206.svg Glangevlin – Blacklion, County Cavan
 * IRL R207.svg Drumshanbo, County Leitrim – Dowra, Mullaghahy, County Cavan
 * IRL R208.svg Drumshanbo – Ballinamore, County Leitrim
 * IRL R209.svg Drumheckil – Fenagh, County Leitrim
 * IRL R210.svg Drumaleague – Drumcong, County Leitrim
 * IRL R211.svg Cappoge – Mooremount, County Louth
 * IRL R212.svg Clones, County Monaghan – Ballyhaise, County Cavan – Cavan
 * IRL R213.svg Tyholland – Castleshane, County Monaghan
 * IRL R214.svg Castleshane – Drumbeo, County Monaghan
 * IRL R229.svg De Valera Road and Port Road, Letterkenny, County Donegal
 * IRL R230.svg Glencolmbkille – Ardara. County Donegal
 * IRL R231.svg Ballyshannon – Ballintra, County Donegal
 * IRL R232.svg Eaghy – Pettigoe, County Donegal
 * IRL R233.svg Pettigoe – Lough Derg, County Donegal
 * IRL R234.svg Pettigoe – Letter Bridge, County Donegal
 * IRL R235.svg Castlefinn – Alt Upper, County Donegal
 * IRL R236.svg Stranorlar – Dunmore, County Donegal
 * IRL R237.svg Newtowncunningham – Athaghaderry, County Donegal
 * IRL R238.svg Ring of Inishowen, County Donegal
 * IRL R239.svg Muff – Burnfoot – Carrownamaddy, County Donegal
 * IRL R240.svg Quigleys Point – Carndonagh, County Donegal
 * IRL R241.svg Moville – Portsallagh, County Donegal
 * IRL R242.svg Doon Bridge – Malin – Slievebane, County Donegal
 * IRL R243.svg Malin – Templemoyle Cross, County Donegal
 * IRL R244.svg Drumfree – Gleneely, County Donegal
 * IRL R245.svg Letterkenny – Rathmelton – Creeslough, County Donegal
 * IRL R246.svg Kilmacrennan – Millford – Portsalon, County Donegal
 * IRL R247.svg Rathmelton – Carrowkeel – Cionn Fhanáda, County Donegal
 * IRL R248.svg Carrigart – Na Dúnaibh, County Donegal
 * IRL R249.svg Kilmacrenan – Rathmelton, County Donegal
 * IRL R250.svg Letterkenny – Glenties, County Donegal
 * IRL R251.svg Doon Glebe – Gaoth Dobhair, County Donegal
 * IRL R252.svg Ballybofey – An Clochán Liath, County Donegal
 * IRL R253.svg Ballybofey – Glenties, County Donegal
 * IRL R254.svg Carrickyscanlan – An Dúchoraidh, County Donegal
 * IRL R255.svg An Tearmann – Drumfin, County Donegal
 * IRL R256.svg Glenveagh – An Fál Carrach, County Donegal
 * IRL R257.svg Gort an Choirce – Doirí Beaga – Croithlí, County Donegal
 * IRL R258.svg Acomhal Ghaoth Dobhair – Cé an Bhuna Bhig, County Donegal
 * IRL R259.svg Croithlí – Ailt an Choráin – An Clochán Liath, County Donegal
 * IRL R260.svg Ailt an Choráin – Cé Ailt an Choráin, County Donegal
 * IRL R261.svg Maas – Ardara, County Donegal
 * IRL R262.svg Glenties – Mountcharles, County Donegal
 * IRL R263.svg Aghayeevoge – Killybegs – Málainn Bhig, County Donegal
 * IRL R264.svg Raphoe – Lifford, County Donegal
 * IRL R265.svg Rossgeir – St Johnstown – Newtowncunningham, County Donegal
 * IRL R266.svg Mín Doire Abhainn – Aerfort na Carraige Finne, County Donegal
 * IRL R267.svg The Diamond, Donegal and Ballyshannon – Bundoran, County Donegal (part of old National Route 15)
 * IRL R268.svg Portsalon Coast Road, County Donegal
 * IRL R277.svg Sligo Airport Road, Strandhill, County Donegal
 * IRL R278.svg Sligo – Cornalaghta, County Leitrim
 * IRL R279.svg Cliffoney – Mullaghmore, County Sligo
 * IRL R280.svg Bundoran, County Donegal Manorhamilton – Carrick-on-Shannon, County Leitrim
 * IRL R281.svg Kinlough – Conray – Glenfarne, County Leitrim
 * IRL R282.svg Manorhamilton – Dooard, County Leitrim
 * IRL R283.svg Manorhamilton – Kiltyclogher, County Leitrim
 * IRL R284.svg Carrowroe, County Sligo – Leitrim
 * IRL R285.svg Ardcarn – Keadew – Mountallen, County Roscommon
 * IRL R286.svg Sligo – Pollboy, County Leitrim
 * IRL R287.svg Sligo – Killarga, County Leitrim
 * IRL R288.svg Dromahair – Sriff, County Leitrim
 * IRL R289.svg Dromahair – Corderry, County Leitrim
 * IRL R290.svg Gortlownan – Ballisadare, County Sligo
 * IRL R291.svg Sligo – Rosses Point, County Sligo
 * IRL R292.svg Sligo – Strandhill – Ballisadare, County Sligo
 * IRL R293.svg Ballynaboll, County Sligo – Ballaghaderreen, County Roscommon – Ballyhaunis, County Mayo
 * IRL R294.svg Boyle, County Roscommon – Tobercurry, County Sligo – Ballina, County Mayo
 * IRL R295.svg Ballymote, County Sligo – Boyle, County Roscommon
 * IRL R296.svg Ballymote – Quarryfield, County Sligo
 * IRL R297.svg Dromore West, County Sligo – Dooyeaghvy, County Mayo
 * IRL R298.svg Inishcrone – Carrownurlar, County Sligo
 * IRL R299.svg Drumsna – Drumheckil, County Leitrim

R300–R399

 * IRL R300.svg Partry, County Mayo – An Fhairche, County Galway
 * IRL R310.svg Castlebar – Rahans, County Mayo
 * IRL R311.svg Castlebar – Newport, County Mayo
 * IRL R312.svg Castlebar – Bellacorick, County Mayo
 * IRL R313.svg Bangor – An Fod Dubh, County Mayo
 * IRL R314.svg Béal an Mhuirthead – Ballycastle – Ballina, County Mayo
 * IRL R315.svg Pontoon – Crossmolina – Ballycastle, County Mayo
 * IRL R316.svg Bogadoon – Crossmolina, County Mayo
 * IRL R317.svg Newport – Boggy, County Mayo
 * IRL R318.svg Foxford – Pontoon, County Mayo
 * IRL R319.svg Mallaranny – Keem, County Mayo
 * IRL R320.svg Swinford – Claremorris, County Mayo
 * IRL R321.svg Ballylahan – Bohola – Kiltimagh, County Mayo
 * IRL R322.svg Kiltimagh – Kilkelly, County Mayo
 * IRL R323.svg Kiltimagh – Knock – Ballyhaunis, County Mayo
 * IRL R324.svg Balla – Kiltimagh, County Mayo
 * IRL R325.svg Glentavraun, County Mayo – Cloonarragh, County Roscommon
 * IRL R326.svg Loughglinn – Meelick, County Roscommon
 * IRL R327.svg Cuilmore, County Mayo – Pollremon, County Galway
 * IRL R328.svg Ballindine, County Mayo – Moylough, County Galway
 * IRL R329.svg Knock, County Mayo (part of old National Route 17)
 * IRL R330.svg Westport – Partry, County Mayo
 * IRL R331.svg Claremorris – Ballinrobe, County Mayo
 * IRL R332.svg Moylough – Tuam, County Galway – Kilmaine, County Mayo
 * IRL R333.svg Tuam – Headford, County Galway
 * IRL R334.svg Ballinrobe – Neale, County Mayo – Headford, County Galway
 * IRL R335.svg Westport – Louisburgh – Leenane, County Mayo
 * IRL R336.svg Leenaun – An Teach Dóite – An Spidéal, County Galway – Galway
 * IRL R337.svg Taylors Hill, Galway
 * IRL R338.svg Salthill – Newcastle – Oranmore, County Galway
 * IRL R339.svg Galway – Caltra, County Galway
 * IRL R340.svg Scrib – Sraith Salach, County Galway
 * IRL R341.svg Ballinafad – Roundstone – Clifden, County Galway
 * IRL R342.svg Lettershinna – Doire Fhada Thiar, County Galway
 * IRL R343.svg Casla – An Cheathrú Rua, County Galway
 * IRL R344.svg Sraith Salach – Kylemore, County Galway
 * IRL R345.svg An Mám, County Galway – Neale, County Mayo
 * IRL R346.svg Cong – Cross, County Mayo
 * IRL R347.svg Kinvarra – Craughwell – Tuam, County Galway
 * IRL R348.svg Derrydonnell – Athenry – Ballinasloe, County Galway
 * IRL R349.svg Loughrea – Tallyho Cross, County Galway
 * IRL R350.svg Loughrea – Bellafa, County Galway
 * IRL R351.svg Loughrea – Woodford, County Galway
 * IRL R352.svg Portumna, County Galway – Ennis, County Clare
 * IRL R353.svg Portumna – Ballinasloe, County Galway
 * IRL R355.svg Portumna – Ballinasloe, County Galway
 * IRL R356.svg Killimor, County Galway – Cloghan, County Offaly
 * IRL R357.svg Athleague, County Roscommon – Ballinasloe, County Galway – Blue Ball, County Offaly
 * IRL R358.svg Ballinasloe – Mount Bellew Bridge, County Galway
 * IRL R359.svg Mount Bellew Bridge – New Inn, County Galway
 * IRL R360.svg Dunmore – Ballymoe, County Galway
 * IRL R361.svg Williamstown, County Galway – Castlerea, County Roscommon – Boyle, County Roscommon
 * IRL R362.svg Dunmore, County Galway – Athleague, County Roscommon – Athlone, County Westmeath
 * IRL R363.svg Newsbridge, County Galway – Bellanamullia, County Roscommon
 * IRL R364.svg Moylough – Ballymoe, County Galway
 * IRL R365.svg Marlay – Ballynahowna, County Galway
 * IRL R366.svg Roscommon – Aghagower, County Roscommon
 * IRL R367.svg Ballymoe, County Galway – Tulsk, County Roscommon
 * IRL R368.svg Four Mile House – Strokestown, County Roscommon – Carrick-on-Shannon, County Leitrim
 * IRL R369.svg Elphin – Gortnagoyne, County Roscommon
 * IRL R370.svg Frenchpark, County Roscommon – Carrick-on-Shannon, County Leitrim
 * IRL R371.svg Roosky, County Leitrim – Ballyleague, County Roscommon
 * IRL R372.svg Na Doiriú Theas – Cé Nua Ros an Mhíl, County Galway
 * IRL R373.svg Breaffy – Castlebar, County Mayo
 * IRL R374.svg Casla – Leitir Mealláin, County Galway
 * IRL R375.svg Swinford – Kilkelly, County Mayo
 * IRL R376.svg Lurga Upper – Ireland West Airport Knock
 * IRL R377.svg Castleplunket – Castlerea, County Roscommon
 * IRL R378.svg Louisburgh – Roonagh Pier, County Mayo
 * IRL R379.svg Streamstown – Cleggan, County Galway
 * IRL R389.svg Kilbeggan – Skeagh, County Westmeath
 * IRL R390.svg Mullingar – Ballymore – Athlone, County Westmeath
 * IRL R391.svg Mullingar – Horseleap, County Westmeath – Clara, County Offaly
 * IRL R392.svg Mullingar, County Westmeath – Ballymahon – Lanesborough, County Longford
 * IRL R393.svg Mullingar – Ballinacarrigy, County Westmeath – Longford
 * IRL R394.svg Tullanisky, County Westmeath – Kilcogy, County Cavan
 * IRL R395.svg Delvin – Castlepollard, County Westmeath – Edgeworthstown, County Longford
 * IRL R396.svg Coole, County Westmeath – Granard, County Longford
 * IRL R397.svg Longford – Ballymahon, County Longford
 * IRL R398.svg Derraghan More – Brickeens, County Longford
 * IRL R399.svg Kilcurry – Ratharney, County Longford

R400–R499

 * IRL R400.svg Mullingar, County Westmeath – Cushina, County Offaly
 * IRL R401.svg Kinnegad, County Westmeath – Edenderry, County Offaly – Kildare
 * IRL R402.svg Innfield, County Meath – Ballina Cross, County Offaly
 * IRL R403.svg Lucan, County Dublin – Clane – Carbury, County Kildare
 * IRL R404.svg Leixlip – Saint Wolstans, County Kildare
 * IRL R405.svg Maynooth, County Kildare – Newcastle, County Dublin
 * IRL R406.svg Maynooth – Barberstown Cross, County Kildare
 * IRL R407.svg Kilcock – Naas, County Kildare
 * IRL R408.svg Maynooth – Prosperous, County Kildare
 * IRL R409.svg Blackwood Cross – Naas, County Kildare
 * IRL R410.svg Naas, County Kildare – Blessington, County Wicklow
 * IRL R411.svg Naas, County Kildare – Hollywood, County Wicklow
 * IRL R412.svg Stephenstown South, County Kildare – Whitestown, County Wicklow
 * IRL R413.svg Kildare – Kilcullen – Ballymore Eustace, County Kildare
 * IRL R414.svg Shee Bridge – Monasterevin, County Kildare
 * IRL R415.svg Allenwood Cross – Kildare – Crookstown Upper, County Kildare
 * IRL R416.svg Milltown – Droichead Nua – Kinnegad Cross, County Kildare
 * IRL R417.svg Monasterevin, County Kildare – Carlow
 * IRL R418.svg Athy – Castledermot, County Kildare – Tullow, County Carlow
 * IRL R419.svg Greatheath – Portarlington, County Laois – Bracknagh, County Offaly – Rathangan, County Kildare
 * IRL R420.svg Killinure, County Laois – Bawnoges, County Westmeath
 * IRL R421.svg Tullamore, County Offaly – Roscrea, County Tipperary
 * IRL R422.svg Cappakeel – New Inn – Mountmellick – Coolagh Cross, County Laois
 * IRL R423.svg Portarlington, County Offaly – Mountmellick – Mountrath, County Laois
 * IRL R424.svg Lea Cross, County Laois – Monasterevin, County Kildare
 * IRL R425.svg Rathbrennan – Abbeyleix, County Laois
 * IRL R426.svg Portlaoise – Castlecomer, County Kilkenny
 * IRL R427.svg Cashel – Stradbally, County Laois – Cloney, County Kildare
 * IRL R428.svg Stradbally, County Laois – Athy, County Kildare
 * IRL R429.svg Ballickmoyler, County Laois – Maganey Cross, County Kildare
 * IRL R430.svg Carlow – Mountrath, County Laois
 * IRL R431.svg Crettyard – Molloys Cross, County Laois
 * IRL R432.svg Abbeyleix, County Laois – Ballyragget, County Kilkenny
 * IRL R433.svg Abbeyleix, County Laois – Templemore, County Tipperary
 * IRL R434.svg Borris-in-Ossory – Durrow, County Laois
 * IRL R435.svg Borris-in-Ossory – Rathdowney, County Laois – Balief Cross, County Kilkenny
 * IRL R436.svg Kilbeggan, County Westmeath – Ferbane, County Offaly
 * IRL R437.svg Ferbane – Kilcormac, County Offaly
 * IRL R438.svg Borrisokane, County Tipperary – Cloghan, County Offaly
 * IRL R439.svg Birr – Banagher, County Offaly
 * IRL R440.svg Birr – Kinnity, County Offaly – Mountrath, County Laois
 * IRL R441.svg Rhode – Edenderry, County Offaly
 * IRL R442.svg Clonbullogue – Bracknagh, County Offaly
 * IRL R443.svg Ring Road, Tullamore, County Offaly
 * IRL R444.svg Shannonbridge – Clonmacnoise, County Offaly – Farnagh, County Westmeath
 * IRL R445.svg Naas, County Kildare – Portlaoise, County Laois – Roscrea – Nenagh, County Tipperary – Limerick – Crathloemoyle, County Clare (part of old National Routes 7 and 18)
 * IRL R446.svg Kinnegad, County Westmeath – Galway (old National Route 6)
 * IRL R448.svg Naas, County Kildare – Waterford (old National Route 9)
 * IRL R449.svg Collinstown – Celbridge, County Kildare
 * IRL R458.svg Gort, County Galway – Smithstown, County Clare (part of old National Route 18)
 * IRL R459.svg Doolin – Doolin Pier, County Clare
 * IRL R460.svg Gort, County Galway – Corofin – Milltown Malbay, County Clare
 * IRL R461.svg Gort, County Galway – Scarriff, County Clare
 * IRL R462.svg Gort, County Galway – Cratloe, County Clare
 * IRL R463.svg Limerick – Killaloe – Scarriff, County Clare
 * IRL R464.svg Limerick – Parteen, County Clare
 * IRL R465.svg Parkroe – Bodyke, County Clare
 * IRL R466.svg Cloughan – Broadford, County Clare – Birdhill, County Tipperary
 * IRL R467.svg Clogher – Rosneillan, County Clare
 * IRL R468.svg Ballynahinch – Feakle, County Clare
 * IRL R469.svg Kilmurry – Ennis, County Clare
 * IRL R470.svg Newmarket-on-Fergus – Sixmilebridge, County Clare
 * IRL R471.svg Shannon Town – Cloonlara, County Clare
 * IRL R472.svg Newmarket-on-Fergus – Shannon, County Clare
 * IRL R473.svg Ennis – Killadysert – Kilrush Pier, County Clare
 * IRL R474.svg Ennis – Milltown Malbay, County Clare
 * IRL R475.svg College Green, Ennis, County Clare
 * IRL R476.svg Ennis – Lisdoonvarna, County Clare
 * IRL R477.svg Ballvaughan – Black Head – Lisdoonvarna, County Clare
 * IRL R478.svg Lisdoonvarna – Cliffs of Moher – Lehinch, County Clare
 * IRL R479.svg Ballynalackan – Coogyulla, County Clare
 * IRL R480.svg Ballyvaughan – Leamaneh Cross, County Clare
 * IRL R481.svg Kilfenora – Ennistimon, County Clare
 * IRL R482.svg Spanish Point Road, County Clare
 * IRL R483.svg Cloonadrum – Kilrush, County Clare
 * IRL R484.svg Doonbegh – Creegh – Knockalough, County Clare
 * IRL R485.svg Derrycrossaun Cross – Corrowniska, County Clare
 * IRL R486.svg Carrowbane – Killimer Ferry, County Clare
 * IRL R487.svg Kilkee – Loop Head, County Clare
 * IRL R488.svg Breaghva – Carrigaholt, County Clare
 * IRL R489.svg Portumna, County Galway – Birr, County Offaly
 * IRL R490.svg Borrisokane, County Tipperary – Moneygall, County Offaly
 * IRL R491.svg Nenagh – Cloughjordan, County Tipperary – Shinrone, County Offaly – Roscrea, County Tipperary
 * IRL R492.svg Sharavogue – Shinrone, County Offaly
 * IRL R493.svg Nenagh – Coolbaun – Carrigahorrig, County Tipperary
 * IRL R494.svg Nenagh – Ballina – Birdhill, County Tipperary
 * IRL R495.svg Nenagh – Dromineer, County Tipperary
 * IRL R496.svg Kilmastulla, County Tipperary – Killaloe, County Clare
 * IRL R497.svg Nenagh – Dolla – Tipperary, County Tipperary
 * IRL R498.svg Nenagh – Thurles, County Tipperary
 * IRL R499.svg Toomyvara – Dolla – Boher, County Tipperary

R500–R599

 * IRL R500.svg Nenagh – Silvermines, County Tipperary
 * IRL R501.svg Templemore – Borrisoleigh, County Tipperary
 * IRL R502.svg Templemore, County Tipperary – Johnstown, County Kilkenny
 * IRL R503.svg Limerick – Milestone – Thurles, County Tipperary
 * IRL R504.svg Birdhill – Newport, County Tipperary
 * IRL R505.svg Grange East, County Limerick – Dundrum – Cashel, County Tipperary
 * IRL R506.svg Annacotty – Cappamore, County Limerick
 * IRL R507.svg Cluggin Cross – Doon, County Limerick
 * IRL R508.svg Limerick – Clonmacken; much of route became part of the N7 in 1994. Now R445 and L8570.
 * IRL R509.svg Childers Road, Limerick
 * IRL R510.svg Dock Road – Ballycummin, Limerick
 * IRL R511.svg Limerick – Crean, County Limerick
 * IRL R512.svg Limerick – Kilmallock, County Limerick – Fermoy, County Cork
 * IRL R513.svg Bearys Cross, County Limerick – Mitchelstown, County Cork
 * IRL R514.svg Rockstown – Herbertstown, County Limerick
 * IRL R515.svg Tipperary – Charleville, County Cork – Abbeyfeale, County Limerick
 * IRL R516.svg Emly, County Tipperary – Bruff – Croom, County Limerick
 * IRL R517.svg Kilmallock, County Limerick – Mitchelstown, County Cork
 * IRL R518.svg Kilmallock – Rathkeale – Askeaton, County Limerick (part of old National Route 69)
 * IRL R519.svg Adare – Drumcolliher, County Limerick
 * IRL R520.svg Ballynaskig – Ballykevan – Newcastle West, County Limerick
 * IRL R521.svg Newcastle West – Foynes, County Limerick
 * IRL R522.svg Newcastle West, County Limerick – Kildorrery, County Cork
 * IRL R523.svg Rathkeale, County Limerick – Listowel, County Kerry (part of old National Route 21)
 * IRL R524.svg Glin – Athea – Abbeyfeale, County Limerick
 * IRL R525.svg Dalys Cross – Montpelier, County Limerick
 * IRL R526.svg Patrickswell, County Limerick – Limerick (part of old National Route 20)
 * IRL R527.svg Caherdavin – Ballysimon Road, Limerick (part of old National Routes 18 and 24)
 * IRL R548.svg Doirín Dún Aodha – Guagán Barra, County Cork
 * IRL R549.svg An Mhuiríoch – Feothanach – Dingle, County Kerry
 * IRL R550.svg Crosaire na Coille Móire – Srón Bhroin, County Kerry
 * IRL R551.svg Tarbert – Ballybunion – Tralee, County Kerry
 * IRL R552.svg Ballylongford – Listowel, County Kerry
 * IRL R553.svg Listowel – Ballybunion, County Kerry
 * IRL R554.svg Ballyconry – Lisselton, County Kerry
 * IRL R555.svg Listowel, County Kerry – Abbeyfeale, County Limerick
 * IRL R556.svg Ballyduff – Tralee, County Kerry
 * IRL R557.svg Abbeydorney – Listowel, County Kerry
 * IRL R558.svg Tralee – Fenit, County Kerry
 * IRL R559.svg Dingle – Ceann Sléibhe – Baile an Fheirtéaraigh, County Kerry
 * IRL R560.svg Camp – An Conair, Dingle, County Kerry
 * IRL R561.svg Farranfore – Castlemaine – Anascaul, County Kerry
 * IRL R562.svg Killorglin – Killarney; upgraded to a western extension of the N72.
 * IRL R563.svg Milltown – Fossa, County Kerry
 * IRL R564.svg Glenbeigh – Rossbeigh, County Kerry
 * IRL R565.svg Caherciveen – Portmagee – Knightstown, County Kerry
 * IRL R566.svg Kilcoman – Baile an Sceilg – Portmagee, County Kerry
 * IRL R567.svg Kineigh Cross – Emlaghmore, County Kerry
 * IRL R568.svg Sneem – Molls Gap, County Kerry
 * IRL R569.svg Kenmare – Poulgorm, County Kerry
 * IRL R570.svg Glenflesk – Barraduff, County Kerry
 * IRL R571.svg Kenmare, County Kerry – Castletownbere, County Cork
 * IRL R572.svg Glengarriff – Dursey Sound, County Cork
 * IRL R573.svg Tuosist – Lauragh, County Kerry
 * IRL R574.svg Derreen, County Kerry – Healy Pass – Adrigole, County Cork
 * IRL R575.svg Barnes Gap – Eyeries, County Cork
 * IRL R576.svg Wellesley Bridge, County Kerry – Kippagh Junction, County Cork
 * IRL R577.svg Castleisland, County Kerry – Clonbannin, County Cork
 * IRL R578.svg Ballydesmond – Newmarket – Charleville, County Cork
 * IRL R579.svg Broadford, County Limerick – Kanturk, County Cork – Cork
 * IRL R580.svg Kanturk – Buttevant, County Cork
 * IRL R581.svg Twopothouse – Doneraile, County Cork
 * IRL R582.svg Ballydesmond, County Cork – Rathmore, County Kerry – Macroom, County Cork
 * IRL R583.svg Millstreet – Sandpit Cross, County Cork
 * IRL R584.svg Macroom – Ballylickey, County Cork
 * IRL R585.svg Crookstown – Kealkill, County Cork
 * IRL R586.svg Bandon – Bantry, County Cork
 * IRL R587.svg Macroom – Dunmanway, County Cork
 * IRL R588.svg Capeen – Clonakilty, County Cork
 * IRL R589.svg Bandon – Ballyheedy, County Cork
 * IRL R590.svg Crookstown – Bandon, County Cork
 * IRL R591.svg Bantry – Crookhaven, County Cork
 * IRL R592.svg Ballydehob – Toormore, County Cork
 * IRL R593.svg Skibereen – Drimoleague, County Cork
 * IRL R594.svg Aghaville – Derreeny, County Cork
 * IRL R595.svg Skibbereen – Baltimore, County Cork
 * IRL R596.svg Skibbereen – Castletownshend, County Cork
 * IRL R597.svg Leap – Glandore – Rosscarbery, County Cork
 * IRL R598.svg Burgatia Cross – Owenahincha – Tulligee, County Cork
 * IRL R599.svg Dunmanway – Clonakilty, County Cork

R600–R699

 * IRL R600.svg Cork Airport – Kinsale – Clonakilty, County Cork
 * IRL R601.svg Timoleague – Courtmacsherry, County Cork
 * IRL R602.svg Bandon – Timoleague, County Cork
 * IRL R603.svg Bandon – Garranereagh, County Cork
 * IRL R604.svg Ballinspittle – Old Head of Kinsale – Barrell Cross, County Cork
 * IRL R605.svg Innishannon – Kinsale, County Cork
 * IRL R606.svg Ballythomas Cross – Archdeacon Duggan Bridge, County Cork
 * IRL R607.svg Halfway – Kinsale, County Cork
 * IRL R608.svg Washington Street – Ballincollig, Cork
 * IRL R609.svg Douglas, Cork — Carr's Hill (N28), Cork
 * IRL R610.svg Cork – Passage West – Raffeen, County Cork
 * IRL R611.svg Shannonpark – Belgooly, County Cork
 * IRL R612.svg Carrigaline – Crosshaven, County Cork
 * IRL R613.svg Ringaskiddy – Ballinhassig, County Cork
 * IRL R614.svg Cork – Rathcormack, County Cork
 * IRL R615.svg Cork – Riverstown, County Cork
 * IRL R616.svg White's Cross – Annacarton Bridge, County Cork
 * IRL R617.svg Blarney – Cloghroe, County Cork
 * IRL R618.svg Cork – Coachford – Macroom, County Cork
 * IRL R619.svg Farnanes – Mallow, County Cork
 * IRL R620.svg Dromahane – Mallow, County Cork
 * IRL R621.svg Gortnagross – Newberry Cross, County Cork
 * IRL R622.svg Cloghroe – Cannon's Cross, County Cork
 * IRL R623.svg Little Island Loop Road, County Cork
 * IRL R624.svg Tullagreen – Cobh, County Cork
 * IRL R625.svg Slatty Water – Carrigtohill; declassified after the N25 split the route in two.
 * IRL R626.svg Midleton – Rathcormack, County Cork
 * IRL R627.svg Midleton, County Cork – Tallow, County Waterford
 * IRL R628.svg Rathcormack, County Cork – Tallow, County Waterford
 * IRL R629.svg Midleton – Ballycotton, County Cork
 * IRL R630.svg Ballynacorra – Whitegate, County Cork
 * IRL R631.svg Cloyne – Rostellan, County Cork
 * IRL R632.svg Castlemartyr – Shangarry, County Cork
 * IRL R633.svg Kelly – Ladysbridge, County Cork
 * IRL R634.svg Youghal, County Cork – Tallow Bridge, County Waterford
 * IRL R635.svg North Ring Road, Cork
 * IRL R637.svg Manch West – Drinagh – Skibbereen, County Cork
 * IRL R638.svg Robb's Bridge – Clyda Bridge Lower, Mallow, County Cork
 * IRL R639.svg Durrow, County Laois – Cashel – Caher, County Tipperary – Mitchelstown – Fermoy – Dunkettle, County Cork (part of old National Route 8)
 * IRL R640.svg Knockagh – Caher. County Tipperary
 * IRL R641.svg Victoria Cross – Doughcloyne, Cork
 * IRL R659.svg Thurles – Suir Bridge, County Tipperary
 * IRL R660.svg Thurles – Holycross – Cashel, County Tipperary
 * IRL R661.svg Holycross – Tipperary, County Tipperary
 * IRL R662.svg Tipperary – Ballyfauskeen Cross, County Limerick
 * IRL R663.svg Bansha, County Tipperary – Galbally – Newtown, County Limerick
 * IRL R664.svg Tipperary – Newtown, County Limerick
 * IRL R665.svg Mitchelstown, County Cork – Clonmel, County Tipperary
 * IRL R666.svg Fermoy, County Cork – Lismore, County Waterford
 * IRL R667.svg Molly Barrys Cross – Ballyderown Cross, County Cork
 * IRL R668.svg Caher – Clogheen, County Tipperary – Lismore, County Waterford
 * IRL R669.svg Glentanagree Bridge – Cappoquin, County Waterford
 * IRL R670.svg Caher – Ardfinnan, County Tipperary
 * IRL R671.svg Clonmel, County Tipperary – Kilcloher – Piltown Cross, County Waterford
 * IRL R672.svg Knockaraha Bridge – Ballymacmague – Dungarvan, County Waterford
 * IRL R673.svg Kielys Cross – Ardmore – Clearys Cross, County Waterford
 * IRL R674.svg Killongford – Ceann Heilbhic, County Waterford
 * IRL R675.svg Dungarvan – Tramore – Waterford, County Waterford
 * IRL R676.svg Lemybrien, County Waterford – Carrick-on-Suir, County Tipperary
 * IRL R677.svg Carrick-on-Suir, County Tipperary – Seafield, County Waterford
 * IRL R678.svg Clonmel, County Tipperary – Lowrys Bridge, County Waterford
 * IRL R679.svg Kilmacthomas, County Waterford
 * IRL R680.svg Clonmel Carrick-on-Suir, County Tipperary – Ballyduff, County Waterford – Waterford
 * IRL R681.svg The Sweep – Knockmahon, County Waterford
 * IRL R682.svg Bawnfune – Tramore, County Waterford
 * IRL R683.svg Waterford – Passage East, County Waterford
 * IRL R684.svg Blenheim Cross, Waterford – Dunmore East, County Waterford
 * IRL R685.svg Kilmacomb – Tramore, County Waterford
 * IRL R686.svg Morissons Road, Waterford
 * IRL R687.svg New Inn – Clonmel, County Tipperary
 * IRL R688.svg Cashel – Clonmel, County Tipperary
 * IRL R689.svg Urlingford, County Kilkenny – Clonmel, County Tipperary
 * IRL R690.svg Tranagh – Ninemilehouse, County Tipperary
 * IRL R691.svg Cashel – Killenaule, County Tipperary – Ballymack, County Kilkenny
 * IRL R692.svg Cashel – Fethard, County Tipperary – Mullinahone – Callan, County Kilkenny
 * IRL R693.svg Urlingford, County Kilkenny – Kilkenny
 * IRL R694.svg Freshford – Ballyragget – Castlecomer, County Kilkenny
 * IRL R695.svg Kilkenny – Kilmanagh – Callan, County Kilkenny
 * IRL R696.svg Carrick-on-Suir – Glenbower, County Kilkenny
 * IRL R697.svg Carrick-on-Suir, County Tipperary – Kilkenny
 * IRL R698.svg Callan – Baunreagh – Pilltown, County Kilkenny – Mountbelton, County Waterford
 * IRL R699.svg Callan – Knocktopher, County Kilkenny

R700–R774

 * IRL R700.svg Kilkenny – Thomastown, County Kilkenny – New Ross, County Wexford
 * IRL R701.svg Kilmaganny – Sheepstown, County Kilkenny
 * IRL R702.svg Coolgrange – Gowran, County Kilkenny – Enniscorthy, County Wexford
 * IRL R703.svg Thomastown, County Kilkenny – Ballymurphy County Carlow
 * IRL R704.svg Mullinavat, County Kilkenny – New Ross, County Wexford
 * IRL R705.svg Leighlinbridge – Borris, County Carlow – Stripes, County Kilkenny
 * IRL R706.svg Fethard – Kilsheelan, County Tipperary
 * IRL R707.svg Ballingarrane – Moangarriff – Clonmel, County Tipperary
 * IRL R708.svg Waterford – Waterford Airport – Kilmacleague, County Waterford
 * IRL R709.svg Inner Ring Road, Waterford
 * IRL R710.svg Outer Ring Road, Waterford
 * IRL R711.svg Waterford – Slieveroe, County Kilkenny
 * IRL R712.svg Kilkenny – Paulstown, County Kilkenny (part of old National Route 10)
 * IRL R713.svg Danesfort – Ballyhale, County Kilkenny (part of old National Route 10)
 * IRL R714.svg Corcoran's Cross Roundabout (N30) – Mountelliott (part of old National Route 30)
 * IRL R724.svg Royaloak – Bagenalstown – Kildavin, County Carlow
 * IRL R725.svg Carlow – Tullow, County Carlow – Gorey, County Wexford
 * IRL R726.svg Rathvilly – Carlow, County Carlow
 * IRL R727.svg Straboe – Hacketstown, County Carlow
 * IRL R728.svg Carlow ring road; decommissioned in April 2006.
 * IRL R729.svg Borris, County Carlow – New Ross, County Wexford
 * IRL R730.svg Kiltealy, County Wexford – Wexford
 * IRL R731.svg Ballynabanoge – Ballinlug East, County Wexford
 * IRL R732.svg Coolnaveagh – Raheenagurren East, County Wexford
 * IRL R733.svg New Ross – Arthurstown – Wellingtonbridge, County Wexford – Wexford
 * IRL R734.svg Slaght – Hook Head, County Wexford
 * IRL R735.svg Dunmain – Ballymackesy, County Wexford
 * IRL R736.svg Ballynabola – Wellingtonbridge – Rosslare, County Wexford
 * IRL R737.svg Haggard – Duncannon, County Wexford
 * IRL R738.svg Ballyhit – Waddingtown – Baldwinstown, County Wexford
 * IRL R739.svg Ballykilliane – Kilmore Quay, County Wexford
 * IRL R740.svg Ballybrennan Big – Rosslare, County Wexford
 * IRL R741.svg Wexford – Castlebridge – Gorey, County Wexford
 * IRL R742.svg Faheys Cross – Courtown – Gorey, County Wexford
 * IRL R743.svg Curracloe – White Gap, County Wexford
 * IRL R744.svg Enniscorthy – Blackwater, County Wexford
 * IRL R745.svg Wheelagower – Ferns, County Wexford
 * IRL R746.svg Wheelagower – Bunclody, County Wexford – Croneyhorn, County Wicklow
 * IRL R747.svg Mullmast, County Kildare – Hacketstown, County Carlow – Arklow, County Wicklow
 * IRL R748.svg Carnew – Tinahely, County Wicklow
 * IRL R749.svg Shillelagh – Tinahely, County Wicklow
 * IRL R750.svg Arklow – Wicklow – Rathnew, County Wicklow
 * IRL R751.svg Wicklow – The Beehive, County Wicklow
 * IRL R752.svg Rathnew – Woodenbridge, County Wicklow
 * IRL R753.svg Aughrim – Ballinacarrig, County Wicklow
 * IRL R754.svg Avoca – Ballinacor, County Wicklow
 * IRL R755.svg Rathdrum – Laragh – Kilmacanogue, County Wicklow
 * IRL R756.svg Laragh – Wicklow Gap – Dunlavin, County Wicklow
 * IRL R757.svg Laragh – Glendalough, County Wicklow
 * IRL R758.svg Lockstown – Burgage Moyle, County Wicklow
 * IRL R759.svg Tinode – Sally Gap – Draghmore, County Wicklow
 * IRL R760.svg Enniskerry – Killough, County Wicklow
 * IRL R761.svg Rathnew – Kilcoole – Bray, County Wicklow
 * IRL R762.svg Greystones – Glen of the Downs, County Wicklow
 * IRL R763.svg Ashford – Annamoe, County Wicklow
 * IRL R764.svg Ashford – Roundwood, County Wicklow
 * IRL R765.svg Newtownmountkennedy – Roundwood, County Wicklow
 * IRL R766.svg The Strand, Bray, County Wicklow
 * IRL R767.svg Bray – Hollybrook, County Wicklow
 * IRL R768.svg Southern Ring Road, Bray, County Wicklow
 * IRL R769.svg Ballindinas, County Wexford – Wexford
 * IRL R770.svg Arthurstown – Ballyhack, County Wexford
 * IRL R772.svg Newtownmountkennedy – Ashford – Rathnew – Arklow, County Wicklow – Gorey, County Wexford (part of old National Route 11)
 * IRL R773.svg Jack White's Cross – Brittas, County Wicklow
 * IRL R774.svg Willow Grove – Charlesland, County Wicklow

R801–R899

 * IRL R801.svg North Wall, Dublin
 * IRL R802.svg Dorset Street – Bath Road, Dublin
 * IRL R803.svg Summerhill – Parnell Street, Dublin
 * IRL R804.svg Granvy Row – Cork Street, Dublin
 * IRL R805.svg Ellis Quay – Finglas, Dublin
 * IRL R806.svg Blanchardstown – Manor Street, Dublin
 * IRL R807.svg Clontarf Road, Dublin
 * IRL R808.svg Artane – Clontarf, Dublin
 * IRL R809.svg Raheny – Baldoyle, County Dublin
 * IRL R810.svg Cornmarket – Inchicore, Dublin
 * IRL R811.svg South Circular Road, Dublin
 * IRL R812.svg Davitt Road, Dublin
 * IRL R813.svg City Quay, Dublin
 * IRL R814.svg Lombard Street East, Dublin
 * IRL R815.svg Westland Row – Donnybrook, Dublin
 * IRL R816.svg Baggot Street, Dublin
 * IRL R817.svg Harolds Cross – Ballyboden, County Dublin
 * IRL R818.svg Terenure – Walkinstown Roundabout, County Dublin
 * IRL R819.svg Long Mile Road – Tallaght Village, County Dublin
 * IRL R820.svg Rathmines – Milltown, Dublin
 * IRL R821.svg Rathfarnham – Churchtown, Dublin
 * IRL R822.svg Grange Road, Rathfarnham, County Dublin
 * IRL R823.svg Ballyboden – Grange Road; now part of the R113.
 * IRL R824.svg Ailesbury Road, Dublin
 * IRL R825.svg Milltown – Blackrock, County Dublin
 * IRL R826.svg Wyckham Way, Dundrum, County Dublin
 * IRL R827.svg Blackrock – Cornelscourt, County Dublin
 * IRL R828.svg Stradbrook Road, Killiney, County Dublin
 * IRL R829.svg Monkstown – Dalkey, County Dublin
 * IRL R830.svg Foxrock – Dún Laoghaire, County Dublin
 * IRL R831.svg Sandycove Seafront, County Dublin
 * IRL R832.svg Glasthule – Ballybrack
 * IRL R833.svg Ballyfermot Road, Dublin
 * IRL R834.svg Embankment Road, Clontarf, Dublin
 * IRL R835.svg Woodville – Cooldrinagh, County Dublin
 * IRL R836.svg Miltonsfields – Newtown
 * IRL R837.svg Loughlinstown – Shankill, County Dublin
 * IRL R838.svg Walkinstown Embankment Road, County Dublin
 * IRL R839.svg Inchicore – Kilmainham, Dublin
 * IRL R840.svg Earlsfort Terrace, Dublin
 * IRL R841.svg Darndale – Clongriffen; became a portion of the new R139 in 2012.
 * IRL R842.svg Golden Ball – Cornellscourt, County Dublin
 * IRL R843.svg Snugborough Road, Blanchardstown, County Dublin
 * IRL R846.svg Sundays Well Road, Cork
 * IRL R847.svg Christy Ring Bridge – Washington Street, Cork
 * IRL R848.svg Grand Parade, Cork
 * IRL R849.svg Glasheen Road and Bishopstown Road, Cork
 * IRL R851.svg South Douglas Road and Grange Road, Cork
 * IRL R852.svg Boreenmanagh Road and Skehard Road, Cork
 * IRL R853.svg Well Road and Blackroad Road, Cork
 * IRL R854.svg Saint Patricks Quay, Cork
 * IRL R857.svg Ennis Road, Limerick
 * IRL R858.svg Lord Edward Street and New Road, Limerick
 * IRL R859.svg Mungret – Quinns Cross, Limerick
 * IRL R860.svg Saint Johns Street, Waterford
 * IRL R861.svg Grannagh – Newrath, County Kilkenny
 * IRL R863.svg Eglinton Street and University Road, Galway
 * IRL R864.svg Salthill Road and Newcastle Road, Galway
 * IRL R865.svg Ballybane Road, Galway
 * IRL R866.svg Headford Road, Galway
 * IRL R867.svg Church Square, Monaghan
 * IRL R868.svg Fermanagh Street, Clones, County Monaghan
 * IRL R869.svg Letterkenny – Letterkenny Hospital
 * IRL R870.svg Pearse Road and Markievicz Road, Sligo
 * IRL R871.svg Clon Road and Gort Road, Ennis, County Clare
 * IRL R872.svg Market Square – James Fintan Lalor Avenue
 * IRL R873.svg Mitchell Street, Nenagh, County Tipperary
 * IRL R874.svg North Circular Road, Tralee, County Kerry
 * IRL R875.svg Castle Street, Tralee, County Kerry
 * IRL R876.svg Park Road and High Street, Killarney, County Kerry
 * IRL R877.svg Port Road, Killarney, County Kerry
 * IRL R878.svg Oakpark Road Tralee County Kerry replacing portion of N69 in Tralee
 * IRL R880.svg Facksbridge – Miles, Clonakilty, County Cork
 * IRL R883.svg Main Street, Mallow, County Cork
 * IRL R884.svg Irishtown, Clonmel, County Tipperary
 * IRL R885.svg Main Street, Carrick-on-Suir, County Tipperary
 * IRL R886.svg New Road, Kilkenny
 * IRL R887.svg Wolfe Tone Street and John Street, Kilkenny
 * IRL R888.svg Dublin Road, Carlow
 * IRL R889.svg John Street, Wexford
 * IRL R890.svg Blackstoops – Saint Johns Road, Enniscorthy, County Wexford
 * IRL R891.svg Market Square – Chapel Street, Athenry, County Galway
 * IRL R895.svg Cannon Row, Navan, County Meath
 * IRL R896.svg Ludlow Street, Navan, County Meath
 * IRL R898.svg Castle Street, Trim, County Meath; became a portion of the R933 in 2012.
 * IRL R899.svg Greenhills Road, Drogheda, County Louth

R900–R941

 * IRL R900.svg West Street, Drogheda, County Louth
 * IRL R901.svg Main Street, Cavan
 * IRL R902.svg Bridge Street, Boyle, County Roscommon
 * IRL R903.svg Main Street, Carrick-on-Shannon, County Leitrim
 * IRL R904.svg Dunloe Street, Ballinasloe, County Galway
 * IRL R907.svg Main Street, Midleton, County Cork
 * IRL R908.svg The Front Strand, Youghal, County Cork
 * IRL R909.svg College Road, Kilkenny
 * IRL R910.svg Waterford Road, Kilkenny
 * IRL R911.svg Clogherane – Abbeyside, Dungarvan, County Waterford
 * IRL R912.svg Jordanstown – Paulstown, County Kilkenny
 * IRL R913.svg Mitchelstown Road – The Square, Caher, County Tipperary
 * IRL R914.svg Roscommon Road, Athlone, County Westmeath
 * IRL R915.svg Ballymahon Road, Athlone, County Westmeath
 * IRL R916.svg Waterhouse Road, Athlone, County Westmeath
 * IRL R917.svg Spencer Street, Castlebar, County Mayo
 * IRL R918.svg Little Bray – Fassaroe, Bray, County Wicklow
 * IRL R919.svg Killerisk Road, Tralee, County Kerry
 * IRL R920.svg Cloghore – Belleek Bridge, County Donegal
 * IRL R921.svg Merlin Park – Droughiska, Galway
 * IRL R922.svg Abbeyleix Road, Portlaoise, County Laois; became a portion of the N77 in February 2012.
 * IRL R923.svg Bishop Street, Tuam, County Galway (old N83), downgraded in October 2018.
 * IRL R924.svg Church Street, Carlow, County Carlow
 * IRL R925.svg Killybegs Road, Donegal, County Donegal
 * IRL R926.svg Dooradoyle, County Limerick
 * IRL R927.svg Main Street, Carrickmacross, County Monaghan
 * IRL R928.svg Pearse Street, Ballina, County Mayo
 * IRL R929.svg Main Street, Ballyhaunis, County Mayo
 * IRL R930.svg Shortcastle Street, Mallow, County Cork
 * IRL R931.svg Bridge Street, Skibbereen, County Cork
 * IRL R932.svg Golden Road, Cashel, County Tipperary
 * IRL R933.svg Castle Street and Haggard Street, Trim, County Meath
 * IRL R934.svg Castletown Road, Dundalk, County Louth
 * IRL R935.svg Bellananagh Road, Cavan
 * IRL R936.svg Allingham Road, Ballyshannon, County Donegal
 * IRL R937.svg Dublin Road, Monaghan
 * IRL R938.svg Dublin Road, Castleblaney, County Monaghan
 * IRL R940.svg Ramelton Road, Letterkenny, County Donegal
 * IRL R941.svg Kells, County Meath
 * IRL R942.svg Tuam, County Galway (old N17)
 * IRL R999.svg Wicklow Port Access Road, County Wicklow; number may be a mistake as is normally used as a placeholder on sample road signs.