List of highways numbered 66

The following highways are numbered 66:

Australia

 * Barkly Highway (Northern Territory)
 * Riddoch Highway

Canada

 * Alberta Highway 66.svg Alberta Highway 66
 * Ontario 66.svg Highway 66 (Ontario)

Finland

 * Route_66-FIN.png Kantatie 66 (Orivesi — Lapua)

France

 * A66a (France) Route marker.gif A66 autoroute

Germany

 * Bundesautobahn 66 number.svg Bundesautobahn 66

Greece

 * GR-EO-66.svg Greek National Road 66, a national highway connecting Nemea with Levidi via Skoteini

Hungary

 * 66 (Hu) Otszogletu zold tabla.svg 66-os főút (Kaposvár – Pécs)

India

 * NH68-IN.svg National Highway 66 (India)

Ireland

 * IRL N66.svg N66

Israel

 * ISR-HW-66.svg Highway 66 (Israel)

Malaysia

 * Jkr-ft66.png Malaysia Federal Route 66

Philippines

 * N66 (Philippines).svg N66 highway (Philippines)

Slovakia

 * Cesta I. triedy číslo 66.svg Road 66 (Slovakia), from Slovak – Hungarian border at Šahy to Tatras mountain

Spain

 * Autovía A-66.svg Autovía A-66 (Silver Route)

United Arab Emirates

 * UAE E66.svg E 66

United Kingdom

 * UK road A66.svg A66 road
 * UK-Motorway-M66.svg M66 motorway

United States

 * I-66.svg Interstate 66, a highway connecting Interstate 81 in Virginia to Washington, D.C.
 * I-66 (Future).svg Interstate 66 (Kansas–Kentucky), a former proposed highway to connect Kansas with Kentucky
 * US 66.svg U.S. Route 66, the most common meaning. Since 1985, when US 66 was decommissioned, several states where US 66 passed have re-commissioned part of the former route in that state as a state route 66. In the list of state routes 66 below, those marked with an asterisk (*) have a connection with the former US 66.
 * Alabama 66.svg Alabama State Route 66
 * Arizona 66.svg Arizona State Route 66*
 * Arkansas 66.svg Arkansas Highway 66
 * California 66.svg California State Route 66*
 * San Bernardino County 66.svg County Route 66 (California)*
 * Colorado 66.svg Colorado State Highway 66
 * Connecticut Highway 66.svg Connecticut Route 66
 * Florida 66.svg Florida State Road 66
 * Georgia 66.svg Georgia State Route 66
 * HI-66.svg Hawaii Route 66
 * ID-66.svg Idaho State Highway 66
 * Illinois 66.svg Illinois Route 66 is now Illinois 126*
 * Indiana 66.svg Indiana State Road 66
 * Iowa 66.svg Iowa Highway 66
 * K-66.svg K-66 (Kansas highway)*
 * Circle sign 66.svg Kentucky Route 66
 * Louisiana 66.svg Louisiana Highway 66
 * MD Route 66.svg Maryland Route 66
 * MA Route 66.svg Massachusetts Route 66
 * M-66.svg M-66 (Michigan highway)
 * MN-66.svg Minnesota State Highway 66
 * Hennepin County 66.svg County Road 66 (Hennepin County, Minnesota)
 * MO-66.svg Missouri Route 66*
 * MO-66 (1948).svg Missouri Route 66 (1922), a pre-1926 highway not connected to US 66
 * MT-66.svg Montana Highway 66
 * N-66.svg Nebraska Highway 66
 * N SPUR 66A.svg Nebraska Spur 66A
 * N SPUR 66C.svg Nebraska Spur 66C
 * N SPUR 66D.svg Nebraska Spur 66D
 * N SPUR 66E.svg Nebraska Spur 66E
 * Nevada 66.svg Nevada State Route 66 (former)
 * Circle sign 66.svg New Jersey Route 66
 * NY-66.svg New York State Route 66
 * County Route 66A (Cayuga County, New York)
 * County Route 66B (Cayuga County, New York)
 * Chautauqua County Route 66 NY.svg County Route 66 (Chautauqua County, New York)
 * Dutchess County Route 66 NY.svg County Route 66 (Dutchess County, New York)
 * CR 66 jct.svg County Route 66 (Jefferson County, New York)
 * CR 66 jct.svg County Route 66 (Monroe County, New York)
 * CR 66 jct.svg County Route 66 (Onondaga County, New York)
 * Putnam County Route 66 NY.svg County Route 66 (Putnam County, New York)
 * Rensselaer County Route 66 NY.svg County Route 66 (Rensselaer County, New York)
 * Saratoga County Route 66 NY.svg County Route 66 (Saratoga County, New York)
 * CR 66 jct.svg County Route 66 (Schoharie County, New York)
 * Suffolk County Route 66 NY.svg County Route 66 (Suffolk County, New York)
 * Sullivan County Route 66 NY.svg County Route 66 (Sullivan County, New York)
 * County Route 66A (Westchester County, New York)
 * NC 66.svg North Carolina Highway 66
 * ND-66 (2015).svg North Dakota Highway 66
 * OH-66.svg Ohio State Route 66
 * Oklahoma State Highway 66.svg Oklahoma State Highway 66*
 * Oklahoma State Highway 66B.svg Oklahoma State Highway 66B*
 * OR 66.svg Oregon Route 66
 * PA-66.svgTurnpike-66.svg Pennsylvania Route 66
 * PR primary 66.svg Puerto Rico Highway 66
 * South Carolina 66.svg South Carolina Highway 66
 * Tennessee 66.svg Tennessee State Route 66
 * Texas 66.svg Texas State Highway 66 (no connection to Texas portion of US 66)
 * Texas Loop 66.svg Texas State Highway Loop 66 (former)
 * Texas Spur 66.svg Texas State Highway Spur 66
 * Texas FM 66.svg Farm to Market Road 66
 * Texas Park Road 66.svg Texas Park Road 66
 * Circle sign 66.svg U.S. Virgin Islands Highway 66
 * Utah SR 66.svg Utah State Route 66
 * Vermont 66.svg Vermont Route 66
 * Virginia 66.svg Virginia State Route 66 (former)
 * WV-66.svg West Virginia Route 66
 * WIS 66.svg Wisconsin Highway 66