List of lakes of Ontario: A

This is a list of lakes of Ontario beginning with the letter A.

A–Ab

 * A Lake
 * Aaron Lake (Timiskaming District)
 * Aaron Lake (Kenora District)
 * Abamasagi Lake
 * Abamategwia Lake
 * Abams Lake
 * Abate Lake
 * Abazotikichuan Lake
 * Abbe Lake
 * Abbess Lake
 * Abbey Lake
 * Abbie Lake
 * Abbotsford Lake
 * Abbott Lake (Sudbury District)
 * Abbott Lake (Kenora District)
 * Abbott Lake (Frontenac County)
 * Abbott Lake (Rainy River District)
 * Abelson Lake
 * Aber Lake
 * Abernethy Lake
 * Abes Lake
 * Abie Lake
 * Abigogami Lake
 * Abimatinu Lake
 * Abinette Lake
 * Lake Abitibi
 * Abney Lake
 * Abram Lake (Kenora District)
 * Abram Lake (Cochrane District)
 * Abs Lake

Ac

 * Acanthus Lake
 * Ace Lake (Thunder Bay District)
 * Ace Lake (Sudbury District)
 * Acer Lake
 * Achapi Lake
 * Acheson Lake (Rainy River District)
 * Acheson Lake (Sudbury District)
 * Achigan Lake
 * Acid Lake
 * Acker Lake
 * Ackerman Lake
 * Acme Lake (Algoma District)
 * Acme Lake (Nipissing District)
 * Acolyte Lake
 * Aconda Lake
 * Acorn Lake
 * Acre Lake
 * Acton Lake
 * Acton Pond

Ad

 * Ada Lake (Muskoka District)
 * Ada Lake (Sudbury District)
 * Ada Lake (Thunder Bay District)
 * Adagio Lake
 * Adair Lake (Kenora District)
 * Adair Lake (Adrian Township, Thunder Bay District)
 * Adair Lake (Sound Creek, Thunder Bay District)
 * Adam Lake
 * Adamac Lake
 * Adamhay Lake
 * Adams Lake (Muskoka District)
 * Adams Lake (Lanark County)
 * Adams Lake (Renfrew County)
 * Adams Lake (Sudbury District)
 * Adams Lake (Haliburton County)
 * Adamson Lake (Timiskaming District)
 * Adamson Lake (Kenora District)
 * Adanac Lake
 * Add Lake
 * Addie Lake
 * Addington Lake
 * Addison Lake (Thunder Bay District)
 * Addison Lake (Sudbury District)
 * Adel Lake
 * Adelaide Lake (Sudbury District)
 * Adelaide Lake (Algoma District)
 * Adelard Lake
 * Adele Lake
 * Adik Lake
 * Adios Lake
 * Admiral Lake
 * Admit Lake
 * Adobe Lake
 * Adrian Lake
 * Adrienne Lake
 * Adventure Lake
 * Adze Lake

Ae–Af

 * Aegean Lake
 * Aerial Lake (Kenora District)
 * Aerial Lake (Thunder Bay District)
 * Aerobus Lake
 * Aerofoil Lake
 * Aeroplane Lake
 * Affleck Lake (Kenora District)
 * Affleck Lake (Sudbury District)
 * A-frame Lake

Ag

 * Agam Lake
 * Agar Lake
 * Agassiz Lake
 * Agate Lake (Peterborough County)
 * Agate Lake (Thunder Bay District)
 * Agate Lake (Cochrane District)
 * Agawa Lake
 * Agawa Station Lake
 * Agimak Lake
 * Agnes Lake (Rainy River District)
 * Agnes Lake (Parry Sound District)
 * Agnew Lake (Sudbury District)
 * Agnew Lake (Kenora District)
 * Agonzon Lake
 * Agreen Lake
 * Aguasabon Lake
 * Ague Lake
 * Agusada Lake
 * Agusk Lake
 * Agutua Lake

Ah–Ai

 * Ahdik Lake
 * Ahern Lake
 * Ahmabel Lake
 * Ahme Lake
 * Ahmic Lake
 * Ahsine Lake
 * Aiabewatik Lake
 * Aide Lake
 * Aikens Lake
 * Aikman Lake
 * Aileen Lake
 * Ainslie Lake
 * Air Hole Lake
 * Aird Lake
 * Airplane Lake (Sudbury District)
 * Airplane Lake (Algoma District)
 * Airport Lake (Algoma District)
 * Airport Lake (Thunder Bay District)
 * Airstrip Lake
 * Airy Lake
 * Aitken Lake (Algoma District)
 * Aitken Lake (Cochrane District)

Aj–Ak

 * Ajax Lake
 * Akandamo Lakes
 * Akebia Lake
 * Akey Lake
 * Aki Lake
 * Akin Lakes
 * Akonesi Lake
 * Akonewi Lake
 * Akow Lake
 * Akron Lakes
 * Akweskwa Lake

Al

 * Alabama Lake
 * Alaska's Lake
 * Alba Lake
 * Albert Lake (Kenora District)
 * Albert Lake (Algoma District)
 * Albert Lake (Lahontan Township, Thunder Bay District)
 * Albert Lake (Fleming Township, Rainy River District)
 * Albert Lake (Burntside Lake, Rainy River District)
 * Albert Lake (Arnott Lake, Thunder Bay District)
 * Albert Lake (Gzowski Township, Thunder Bay District)
 * Albert Lake (Renfrew County)
 * Alberta Lake
 * Albion Lake
 * Alces Lake
 * Alco Lake
 * Alcock Lake
 * Alcona Lake
 * Alcorn Lake
 * Alden Lake (Martel Township, Algoma District)
 * Alden Lake (Corbriere Township, Algoma District)
 * Alder Lake (Peterborough County)
 * Alder Lake (Waterloo Region)
 * Alder Lake (Kenora District)
 * Alder Lake (Nipissing District)
 * Aldon Lake
 * Aldous Lake
 * Aldred Lake
 * Aldridge Lake
 * Ale Lake
 * Aleck Lake
 * Alex Lake (Algoma District)
 * Alex Lake (Kenora District)
 * Alex Lake (Cochrane District)
 * Alexander Lake (Nipissing District)
 * Alexander Lake (Hughson Township, Algoma District)
 * Alexander Lake (Kenora District)
 * Alexander Lake (Cochrane District)
 * Alexander Lake (Duncan Township, Algoma District)
 * Alexander Lake (Sudbury District)
 * Alexander Lake (Timiskaming District)
 * Alexandra Lake
 * Alexandre Lake
 * Alexis Lake
 * Alf Lake (Laughren Township, Algoma District)
 * Alf Lake (Marjorie Township, Algoma District)
 * Alfes Lake
 * Alford Lake (Morah Lake, Kenora District)
 * Alford Lake (Graves Township, Kenora District)
 * Alfred Lake (Kenora District)
 * Alfred Lake (Nipissing District)
 * Alfred Lake (Thunder Bay District)
 * Alfreda Lake
 * Alga Lake
 * Algocen Lake
 * Algonquin Lake
 * Alguire Lake
 * Alice Lake (Kenora District)
 * Alice Lake (Dickson Township, Nipissing District)
 * Alice Lake (Ashley Township, Algoma District)
 * Alice Lake (Greater Sudbury)
 * Alice Lake (Timiskaming District)
 * Alice Lake (Rainy River District)
 * Alice Lake (Leclaire Township, Algoma District)
 * Alice Lake (Gaudry Township, Algoma District)
 * Alice Lake (Hartle Township, Nipissing District)
 * Alice Lake (Sudbury District)
 * Alike Lake
 * Alister Lake
 * Aljo Lake
 * Alkenore Lake
 * Allan Lake (Rowan Lake, Kenora District)
 * Allan Lake (Temagami)
 * Allan Lake (Clifford Township, Cochrane District)
 * Allan Lake (Fitzgerald Township, Nipissing District)
 * Allan Lake (Rainy River District)
 * Allan Lake (Thunder Bay District)
 * Allan Lake (Neely Township, Cochrane District)
 * Allan Lake (Sioux Lookout)
 * Allan Lake (McEachern Lake, Cochrane District)
 * Allan Park Trout Pond
 * Allard Lake (Olink Lake, Thunder Bay District)
 * Allard Lake (Algoma District)
 * Allard Lake (Seseganaga Lake, Thunder Bay District)
 * Allbright Lake
 * Allely Lake
 * Allen Lake (Rainy River District)
 * Allen Lake (Killarney)
 * Allen Lake (Riggs Township, Algoma District)
 * Allen Lake (Hughson Township, Algoma District)
 * Allen Lake (Corbiere Township, Algoma District)
 * Allen Lake (Haliburton County)
 * Allen Lake (Blind River)
 * Allen Lake (Hastings County)
 * Allen Lake (Cunningham Township, Sudbury District)
 * Allen Lakes
 * Allenby Lake
 * Allens Lakes
 * Alligator Lake
 * Allin Lake (Sudbury District)
 * Allin Lake (Kenora District)
 * Allison Lake
 * Allumette Lake
 * Alluring Lake
 * Alm Lake
 * Alma Lake (Thunder Bay District)
 * Alma Lake (Timiskaming District)
 * Alma Lake (Sudbury District)
 * Alma Lake (Algoma District)
 * Almo Lake
 * Almon Lake
 * Almonte Lake
 * Alonghill Lake
 * Alph Lake
 * Alpha Lake (Athelstane Creek, Thunder Bay District)
 * Alpha Lake (Algoma District)
 * Alpha Lake (Dwight Lake, Thunder Bay District)
 * Alpha Lake (Sudbury District)
 * Alpine Lake (Algoma District)
 * Alpine Lake (Cochrane District)
 * Alport Lake
 * Alsever Lake
 * Alston Lake (Sudbury District)
 * Alston Lake (Kenora District)
 * Altar Lake
 * Altimeter Lake
 * Altitude Lake
 * Alto Lake
 * Alton Lake
 * Alva Lake
 * Alvin Lake
 * Alwyn Lake

Am

 * Amable Lakes
 * Amaleen Lake
 * Amanda Lake
 * Ambrose Lake (Thunder Bay District)
 * Ambrose Lake (Algoma District)
 * Amelia Lake (Algoma District)
 * Amelia Lake (Sudbury District)
 * Ameliasburg Mill Pond
 * American Cabin Lake
 * Ames Lake
 * Amesdale Lake
 * Ameson Lake
 * Amethyst Lake
 * Amik Lake (Algoma District)
 * Amik Lake (Rainy River District)
 * Amik Lake (Cochrane District)
 * Amik Lake (Max Creek, Thunder Bay District)
 * Amik Lake (Kenora District)
 * Amik Lake (Greenstone)
 * Amikeus Lake
 * Amikogaming Lake
 * Amikougami Lake
 * Amlin Lake
 * Amoeba Lake
 * Amos Lake (Thunder Bay District)
 * Amos Lake (Sudbury District)
 * Amos Lake (Timiskaming District)
 * Amp Lake
 * Amra Lake
 * Amwri Lake
 * Amy Lake (Sudbury District)
 * Amy Lake (Algoma District)
 * Amylou Lake
 * Amyoa Lake

An

 * Ana Lake
 * Anahareo Lake
 * Anape Lake
 * Anaway Lake
 * Anchor Lake (Rainy River District)
 * Anchor Lake (Kenora District)
 * Anchor Lake (Cochrane District)
 * Anchor Lake (Sudbury District)
 * Ancliff Lake
 * Anders Lake
 * Andersen Lake
 * Anderson Lake (Tolstoi Township, Cochrane District)
 * Anderson Lake (Favell Lake, Cochrane District)
 * Anderson Lake (Nipissing District)
 * Anderson Lake (Sturgeon Lake, Thunder Bay District)
 * Anderson Lake (Sudbury District)
 * Anderson Lake (Wawa)
 * Anderson Lake (Timiskaming District)
 * Anderson Lake (Black River-Matheson)
 * Anderson Lake (St. Ignace Island, Thunder Bay District)
 * Anderson Lake (Kwetabohigan River, Cochrane District)
 * Anderson Lake (Frost Township, Algoma District)
 * Anderson Lake (Shuniah)
 * Anderson Lake (Anderson Township, Algoma District)
 * Anderson Lake (MacFie Township, Kenora District)
 * Anderson Lake (Haliburton County)
 * Anderson Lake (Anderson Creek, Kenora District)
 * Anderson Lake (Lanark County)
 * Anderson Lake (Grey County)
 * Anderson Lake (Ontario–Manitoba)
 * Anderson Pond
 * Andre Lake
 * Andress Lake
 * Andrew Lake (Cochrane District)
 * Andrew Lake (Lanark County)
 * Andrews Lake (Colquhoun Township, Cochrane District)
 * Andrews Lake (Sudbury District)
 * Andrews Lake (Rainy River District)
 * Andrews Lake (Kawartha Lakes)
 * Andrews Lake (McCool Township, Cochrane District)
 * Androsace Lake
 * Andy Lake (Lang Lake, Kenora District)
 * Andy Lake (Thunder Bay District)
 * Andy Lake (Timiskaming District)
 * Andy Lake (Sudbury District)
 * Andy Lake (Sioux Narrows-Nestor Falls)
 * Andy Thompson Lake
 * Anelia Lake
 * Anenimus Lake
 * Aneroid Lake
 * Angekum Lake
 * Angel Lake (Stewart Creek, Thunder Bay District)
 * Angel Lake (Muskoka District)
 * Angel Lake (Tuuri Township, Thunder Bay District)
 * Angela Lake
 * Angelina Lake
 * Anger Lake
 * Angle Lake (Algoma District)
 * Angle Lake (Thunder Bay District)
 * Angle Lake (Sudbury District)
 * Angler Lake
 * Angling Lake
 * Angood Lake
 * Angus Lake (Nipissing District)
 * Angus Lake (Sudbury District)
 * Angus Lake (Algoma District)
 * Anibel Lake
 * Anima Nipissing Lake
 * Animons Lake
 * Animoosh Lake
 * Anishinabi Lake
 * Anita Lake (Algoma District)
 * Anita Lake (Manitoba–Ontario)
 * Anizev Lake
 * Anjigame Lake
 * Anjigami Lake
 * Anjigaming Lake
 * Ankcorn Lake
 * Ankrom Lake
 * Ann Lake (Redditt Township, Kenora District)
 * Ann Lake (Sudbury District)
 * Ann Lake (Algoma District)
 * Ann Lake (Rice Township, Kenora District)
 * Anna Lake (Ontario)
 * Anna Lee Lake
 * Annable Lake
 * Annas Lake
 * Anne Lake
 * Annette Lake (Armistice Creek, Thunder Bay District)
 * Annette Lake (Greenstone)
 * Annex Lake (Sudbury District)
 * Annex Lake (Algoma District)
 * Annibal Lake
 * Annie Lake (Halliday Township, Sudbury District)
 * Annie Lake (Muskoka District)
 * Annie Lake (Kenora District)
 * Annie Lake (Killarney)
 * Annie Lake (Algoma District)
 * Annies Lake
 * Annimwash Lake
 * Annis Lake
 * Anns Lake
 * Another Lake
 * Anrev Lake
 * Ans Lake
 * Ansell Lake
 * Anselmi Lake
 * Ansig Lake
 * Anson Lake (Kenora District)
 * Anson Lake (Haliburton County)
 * Anstey Lake
 * Anstruther Lake
 * Ant Island Lake
 * Ante Lake
 * Anteater Lake
 * Antenna Lake
 * Anthemis Lake
 * Anthony Lake
 * Antler Lake (Brightsand River, Thunder Bay District)
 * Antler Lake (Sudbury District)
 * Antler Lake (St. Ignace Island, Thunder Bay District)
 * Antler Lake (Renfrew County)
 * Antler Lake (Lahontan Township, Thunder Bay District)
 * Antler Lake (Meinzinger Township, Thunder Bay District)
 * Antler Lake (Kenora District)
 * Antoine Lake (Rainy River District)
 * Antoine Lake (Algoma District)
 * Antoine Lake (Frontenac County)
 * Antoine Lake (Nipissing District)
 * Anton Lake
 * Antrim Lake
 * Anubis Lake
 * Anvil Lake (Timiskaming District)
 * Anvil Lake (Algoma District)

Ap

 * Apex Lake (Timiskaming District)
 * Apex Lake (Kenora District)
 * Apisabigo Lake
 * Apitu Lake
 * Apollo Lake
 * Appelle Lake
 * Appelo Lake
 * Appendix Lake
 * Apple Lake (Shawanaga Township, Parry Sound District)
 * Apple Lake (Nipissing District)
 * Apple Lake (Whitestone)
 * Appleby Lake
 * Applesauce Lake
 * Apps Lake
 * April Lake
 * Apsey Lake
 * Apsley Lake
 * Apukwa Lake
 * Apungsisagen Lake

Aq–Ar

 * Aquarius Lake
 * Aquatuk Lake
 * Aquiline Lake
 * Ara Lake
 * Arab Lake
 * Arabella Lake
 * Arabi Lake
 * Aragon Lake
 * Aralia Lake
 * Aramis Lake
 * Arbeesee Lake
 * Arber Lake
 * Arbour Lake
 * Arbuckle Lake
 * Arbutus Lake (Nipissing District)
 * Arbutus Lake (Sudbury District)
 * Arc Lake
 * Arcand Lake
 * Archambeau Lake
 * Archer Lake
 * Archibald Lake
 * Archie Lake
 * Archie's Lake
 * Archies Lake
 * Arcol Lake
 * Arden Lake (Sudbury District)
 * Arden Lake (Frontenac County)
 * Ardis Lake
 * Ardoch Lake
 * Aremis Lake
 * Arethusa Lake
 * Argo Lake (Algoma District)
 * Argo Lake (Rainy River District)
 * Argo Lake (Cochrane District)
 * Argon Lake
 * Argosy Lake (Kenora District)
 * Argosy Lake (Algoma District)
 * Argue Lake (Nipissing District)
 * Argue Lake (Parry Sound District)
 * Arguing Lake
 * Argyle Lake
 * Arib Lake
 * Aries Lake
 * Ariott Lake
 * Arkon Lake
 * Arliss Lake
 * Arlotte Lake
 * Arm Lake (Comox Township, Sudbury District)
 * Arm Lake (Thunder Bay District)
 * Arm Lake (Foy Township, Sudbury District)
 * Arm Lake (Kenora District)
 * Armatta Lake
 * Armer Lake
 * Armes Lake
 * Armin Lake
 * Armishaw Lake
 * Armistice Lake
 * Armit Lake
 * Armitage Lake (Algoma District)
 * Armitage Lake (Kenora District)
 * Armitage Lake (Cochrane District)
 * Armour Lake (Algoma District)
 * Armour Lake (Armour Creek, Kenora District)
 * Armour Lake (Mackie Lake, Kenora District)
 * Arms Lake (Rainy River District)
 * Arms Lake (Thunder Bay District)
 * Armstrong Lake (Algoma District)
 * Armstrong Lake (Totten Township, Sudbury District)
 * Armstrong Lake (Nickels Lake, Kenora District)
 * Armstrong Lake (Penhorwood Township, Sudbury District)
 * Armstrong Lake (Redditt Township, Kenora District)
 * Armstrong Lake (Thunder Bay District)
 * Armstrong Lake (Parry Sound District)
 * Armstrongs Lake
 * Army Lake (Kenora District)
 * Army Lake (Algoma District)
 * Arneil Lake
 * Arneson Lake
 * Arnold Lake (Rainy River District)
 * Arnold Lake (Sudbury District)
 * Arnot Lake
 * Arnott Lake (Parry Sound District)
 * Arnott Lake (Algoma District)
 * Arnott Lake (Lennox and Addington County)
 * Arnott Lake (Thunder Bay District)
 * Arnston Lake
 * Aronson Lake
 * Arp Lake
 * Arpin Lake
 * Arps Lake
 * Arran Lake
 * Arras Lake
 * Arrell Lake
 * Arril Lake
 * Arrow Lake (Cochrane District)
 * Arrow Lake (Papineau-Cameron)
 * Arrow Lake (Arrow River, Thunder Bay District)
 * Arrow Lake (Pentland Township, Nipissing District)
 * Arrow Lake (Wapikaimaski Lake, Thunder Bay District)
 * Arrow Lake (Kenora District)
 * Arrowhead Lake (Muskoka District)
 * Arrowhead Lake (Algoma District)
 * Arrowhead Lake (Thunder Bay District)
 * Arrowhead Lake (Kenora District)
 * Arrowroot Lake
 * Arsenic Lake
 * Art Lake (Rawn Lake, Rainy River District)
 * Art Lake (Haliburton County)
 * Art Lake (Atikokan)
 * Artery Lake
 * Arthur Lake (Cochrane District)
 * Arthur Lake (Parry Sound District)
 * Arthur Lake (Algoma District)
 * Arthur Lake (Timiskaming District)
 * Artie Lake
 * Artist Lake
 * Arundel Lake
 * Arva Lake
 * Aryhart Lake

As

 * Ascalon Lake
 * Ash Lake (Marsh Township, Sudbury District)
 * Ash Lake (Kenora District)
 * Ash Lake (Rainy River District)
 * Ash Lake (Yeo Township, Sudbury District)
 * Ashball Lake
 * Ashburn Lake
 * Ashby Lake
 * Ashby White Lake
 * Asheigamo Lake
 * Ashigami Lake
 * Ashkewe Lake
 * Ashley Lake
 * Ashmore Lake (Priske Township, Thunder Bay District)
 * Ashmore Lake (Greenstone)
 * Ashton Lake
 * Asinn Lake
 * Asio Lake
 * Asipoquobah Lake
 * Askwith Lake
 * Asp Lake
 * Assapan Lake
 * Asselin Lake
 * Assin Lake (Pipestone River, Kenora District)
 * Assin Lake (Broderick Township, Kenora District)
 * Assinamish Lake
 * Assinkepatakiso Lake
 * Aster Lake
 * Aster Pond
 * Aston Lake
 * Astonish Lake
 * Astrolabe Lake
 * Astrop Lake

At

 * Atekepi Lake
 * Athelstane Lake
 * Athlone Lake
 * Athos Lake
 * Atigogama Lake
 * Atik Lake (Kenora District)
 * Atik Lake (Thunder Bay District)
 * Atik Lake (Algoma District)
 * Atikameg Lake (Atikameg Township, Thunder Bay District)
 * Atikameg Lake (Kenora District)
 * Atikameg Lake (Danford Township, Thunder Bay District)
 * Atikamik Lake
 * Atikasibi Lake
 * Atikokiwam Lake
 * Atikomik Lake
 * Atikwa Lake
 * Atim Lake
 * Atkins Lake (Muskoka District)
 * Atkins Lake (Leeds and Grenville United Counties)
 * Atkins Lake (Rainy River District)
 * Atkinson Lake
 * Atlantic Lake
 * Atom Lake
 * Atomic Lake
 * Attach Lake
 * Attack Lake
 * Attawapiskat Lake
 * Attraction Lake
 * Attwood Lake
 * Atwood Lake

Au

 * Aubin Lake
 * Aubrey Lake (Aubrey Township, Kenora District)
 * Aubrey Lake (Algoma District)
 * Aubrey Lake (Haliburton County)
 * Aubrey Lake (Benedickson Township, Kenora District)
 * Auden Lake
 * Audette Lake
 * Audrea Lake
 * Audrey Lake (Fauquier-Strickland)
 * Audrey Lake (Algoma District)
 * Audrey Lake (Wacousta Township, Cochrane District)
 * Auger Lake (Haliburton County)
 * Auger Lake (Cochrane District)
 * Auger Lake (Thunder Bay District)
 * Augite Lake
 * August Lake (Thunder Bay District)
 * August Lake (Kenora District)
 * Augusta Lake (Sudbury District)
 * Augusta Lake (Thunder Bay District)
 * Auld Lake (Sudbury District)
 * Auld Lake (Timiskaming District)
 * Ault Lake
 * Aumond Lake
 * Aura Lee Lake
 * Aurel Lake
 * Aurora Lake (Timiskaming District)
 * Aurora Lake (Nipissing District)
 * Austen Lake
 * Austin Lake (Kenora)
 * Austin Lake (Austin Creek, Kenora District)
 * Austin Lake (Kehoe Township, Algoma District)
 * Austin Lake (Corboy Township, Algoma District)
 * Austin Lake (Sudbury District)
 * Austin Lake (Haliburton County)
 * Austins Lake

Av–Az

 * Ava Lake
 * Avery Lake (Kenora District)
 * Avery Lake (Haliburton County)
 * Avery Lake (Sudbury District)
 * Avery's Lake
 * Avey Lake
 * Avis Lake (Parry Sound District)
 * Avis Lake (Kenora District)
 * Avon Lake
 * Awad Lake
 * Awameg Lake
 * Awkward Lake
 * Awl Lake
 * Awning Lake
 * Axe Lake (McEwing Township, Algoma District)
 * Axe Lake (Renfrew County)
 * Axe Lake (Redditt Township, Kenora District)
 * Axe Lake (Thunder Bay District)
 * Axe Lake (Parry Sound District)
 * Axe Lake (Sudbury District)
 * Axe Lake (Gould Township, Algoma District)
 * Axe Lake (Severn River, Kenora District)
 * Axle Lake
 * Axton Lake
 * Ayah Lake
 * Aylen Lake
 * Aylsworth Lake
 * A.Y. Jackson Lake
 * Ayotte Lake
 * Azadi Lake
 * Azen Lake
 * Azure Lake (Sudbury District)
 * Azure Lake (Kenora District)