The following highways are numbered 66:

International

Australia

Barkly Highway The Barkly Highway is a national highway in Queensland and the Northern Territory in Australia. It is the only sealed road between Queensland and the Northern Territory. The highway is named after the Barkly Tableland, which in turn was named b ...

(Northern Territory) * Riddoch Highway

Canada

Alberta Highway 66 * Ontario 66

Highway 66 (Ontario)

Cuba

* Autopista Sancti Spiritus (4-66)

Finland

Kantatie 66 (

Orivesi Orivesi () is a town in Finland, located in the Pirkanmaa region. It lies to the northeast of the regional capital, Tampere. The population of Orivesi is approximately , while the Tampere metropolitan area, metropolitan area has a population of ...

—

Lapua Lapua (; ) is a List of cities and towns in Finland, town and municipalities of Finland, municipality in Finland's South Ostrobothnia regions of Finland, region. It is located next to the Lapua River. The town has a population of () and cov ...

)

France

* A66 autoroute

Germany

Bundesautobahn 66 is an autobahn in southwestern Germany. It connects the Taunus to Fulda, passing close to Frankfurt am Main. The first part of the autobahn, between Wiesbaden and the Nordwestkreuz Frankfurt, was opened as early as 1934, then called the ''Rhei ...

Greece

Greek National Road 66 Greek National Road 66 is a national highway in southern Greece. It connects Nemea Nemea (; ; ) is an ancient site in the northeastern part of the Peloponnese, in Greece. Formerly part of the territory of Cleonae (Argolis), Cleonae in ancient ...

, a national highway connecting

Nemea Nemea (; ; ) is an ancient site in the northeastern part of the Peloponnese, in Greece. Formerly part of the territory of Cleonae (Argolis), Cleonae in ancient Argolis, it is today situated in the regional units of Greece, regional unit of Corin ...

with

Levidi Levidi () is a small town and a former municipality in Arcadia, Peloponnese, Greece. Since the 2011 local government reform it is part of the municipality Tripoli, of which it is a municipal unit. The municipal unit has an area of 312.641 km ...

via

Skoteini Skoteini () is a small village 57 kilometres northwest of the town of Argos in the Peloponnese, southern Greece. It has an area of 44 km2 and sits at an altitude of 690 meters above sea level. Its name derives from the Greek word for "darkn ...

Hungary

* 66-os főút (Kaposvár – Pécs)

India

National Highway 66 (India) National Highway 66, commonly referred to as NH 66 (erstwhile NH-17 and a part of NH-47), is a mostly 4 lane 1640 km (1020 miles) long busy National Highway (India), National Highway that runs roughly north–south along the western coas ...

Ireland

N66

Israel

Highway 66 (Israel)

Malaysia

Malaysia Federal Route 66

Philippines

* N66 highway (Philippines)

Slovakia

* Road 66 (Slovakia), from Slovak – Hungarian border at Šahy to Tatras mountain

Spain

Autovía A-66 The Autovía A-66 is a major highway in western Spain, part of the European route E803. The road is an upgrade of the N-630 which was undertaken section by section. The route roughly corresponds to the ancient Roman ' Silver Route' connecting ...

(Silver Route)

United Arab Emirates

E 66

United Kingdom

A66 road The A66 is a major road in Northern England, which in part follows the course of the Roman road from Scotch Corner to Penrith. It runs from east of Middlesbrough in North Yorkshire to Workington in Cumbria. The road has been progressively ...

M66 motorway The M66, also known as the Bury Easterly Bypass, is a motorway in Lancashire and Greater Manchester, England. It is long and provides part of the route between the M62 motorway, M62 and M60 motorway, M60 motorways and the M65 motorway, M65, wi ...

United States

Interstate 66 Interstate 66 (I-66) is a 76.32 mile east–west Interstate Highway in the East Coast of the United States, eastern United States. The highway runs from an interchange with Interstate 81 in Virginia, I-81 near Middletown, Virginia, on its w ...

, a highway connecting

Interstate 81 Interstate 81 (I-81) is a north–south (physically northeast–southwest) Interstate Highway in the eastern part of the United States. Its southern terminus is at Interstate 40, I-40 in Dandridge, Tennessee, Dandridge, Tennessee; its nort ...

Virginia Virginia, officially the Commonwealth of Virginia, is a U.S. state, state in the Southeastern United States, Southeastern and Mid-Atlantic (United States), Mid-Atlantic regions of the United States between the East Coast of the United States ...

Washington, D.C. Washington, D.C., formally the District of Columbia and commonly known as Washington or D.C., is the capital city and federal district of the United States. The city is on the Potomac River, across from Virginia, and shares land borders with ...

** Interstate 66 (Kansas–Kentucky), a former proposed highway to connect

Kansas Kansas ( ) is a landlocked U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders Nebraska to the north; Missouri to the east; Oklahoma to the south; and Colorado to the west. Kansas is named a ...

with

Kentucky Kentucky (, ), officially the Commonwealth of Kentucky, is a landlocked U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders Illinois, Indiana, and Ohio to the north, West Virginia to the ...

U.S. Route 66 U.S. Route 66 or U.S. Highway 66 (US 66 or Route 66) is one of the original highways in the United States Numbered Highway System. It was established on November 11, 1926, with road signs erected the following year. The high ...

, 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

Alabama State Route 66 * Arizona 66

Arizona State Route 66 State Route 66 (SR 66) is a surface road in the U.S. state of Arizona in Mohave, Coconino, and Yavapai Counties. In 1914, the road was designated as part of the National Old Trails Highway but in 1926 was re-designated as U.S. Route 66 (U ...

* *

Arkansas Highway 66 Arkansas Highway 66 (AR 66 and Hwy. 66) is an east–west state highway in north central Arkansas. The route of runs from US Route 65 in Leslie east to AR 9 in Mountain View. Route description AR 66 begins in Leslie at US 65 near the Ame ...

California State Route 66* ** San Bernardino County 66

County Route 66 (San Bernardino County, California) County Route 66 (CR 66) is a east–west county highway in San Bernardino County, California, United States that runs along a section of former U.S. Route 66 in California, U.S. Route 66 (US 66). It goes from Oro Grande, Californ ...

* *

Colorado State Highway 66 * Connecticut Highway 66

Connecticut Route 66 Route 66 is an east-west state highway running from Meriden to Windham, serving as an alternate east–west route to U.S. Route 6 (US 6) through east-central Connecticut. Route description Route 66 officially begins at I-91 in Meriden ...

Florida State Road 66 State Road 66 (SR 66) is a 25-mile-long east–west state highway in Hardee County, Florida, Hardee County and Highlands County, Florida, Highlands County. Its western terminus is an intersection with U.S. Route 17 (Florida), US 17 (State R ...

Georgia State Route 66 * HI-66

Hawaii Route 66 * ID-66

Idaho State Highway 66 * Illinois 66

Illinois Route 66 (former) * Indiana 66

Indiana State Road 66 State Road 66 is an east–west highway in seven counties in the southernmost portion of the U.S. state of Indiana. Route description State Road 66 begins at the eastern end of a toll bridge over the Wabash River in New Harmony and ends a ...

Iowa Highway 66 * K-66

K-66 (Kansas highway)* * Circle sign 66

Kentucky Route 66 * Louisiana 66

Louisiana Highway 66 * MD Route 66

Maryland Route 66 * MA Route 66

Massachusetts Route 66 * M-66

M-66 (Michigan highway) M-66 is a north–south state trunkline highway on the Lower Peninsula of the US state of Michigan. It runs from the Indiana state line in the south to Charlevoix in the north. M-66 is the only state highway to run the north–south distan ...

Minnesota State Highway 66 ** Hennepin County 66

County Road 66 (Hennepin County, Minnesota) * MO-66

Missouri Route 66 Route 66 is a fourteen-mile long road in Jasper County, Missouri. Route description Route 66 begins at the Kansas state line in Jasper County, Missouri, Jasper County, where it continues west into that state as K-66 (Kansas highway), K-66. F ...

* ** Missouri Route 66 (1922) (former) * MT-66

Montana Highway 66 * N-66

Nebraska Highway 66 Nebraska Highway 66 is a highway in central and eastern Nebraska. It is a discontinuous highway with four segments heading in a west-to-east direction. The first segment begins at Nebraska Highway 14 south of Central City, Nebraska, Central City ...

Nebraska Spur 66A ** N SPUR 66C

Nebraska Spur 66C ** N SPUR 66D

Nebraska Spur 66D ** N SPUR 66E

Nebraska Spur 66E * Nevada 66

Nevada State Route 66 (former) * Circle sign 66

New Jersey Route 66 * NY-66

New York State Route 66 ** County Route 66A (Cayuga County, New York) *** County Route 66B (Cayuga County, New York) ** County Route 66 (Chautauqua County, New York) ** County Route 66 (Dutchess County, New York) ** CR 66 jct

County Route 66 (Jefferson County, New York) ** CR 66 jct

County Route 66 (Monroe County, New York) ** CR 66 jct

County Route 66 (Onondaga County, New York) ** County Route 66 (Putnam County, New York) **

County Route 66 (Rensselaer County, New York) County routes in Rensselaer County, New York, are maintained by the Rensselaer County Highway Department and signed with the Manual on Uniform Traffic Control Devices-standard yellow-on-blue pentagon route marker. Routes generally do not enter c ...

** County Route 66 (Saratoga County, New York) ** CR 66 jct

County Route 66 (Schoharie County, New York) ** County Route 66 (Suffolk County, New York) ** County Route 66 (Sullivan County, New York) ** County Route 66A (Westchester County, New York) * NC 66

North Carolina Highway 66 * North Dakota Highway 66 * OH-66

Ohio State Route 66 State Route 66 (SR 66) is a north–south state highway in the northwestern portion of the U.S. state of Ohio. Its southern terminus is at U.S. Route 36 (US 36) in Piqua, and its northern terminus is at US 20 in Fayette. South of ...

Oklahoma State Highway 66 State Highway 66 (abbreviated SH-66) is a state highway in the U.S. state of Oklahoma, beginning at U.S. Route 81 in Oklahoma, U.S. Highway 81 in El Reno, Oklahoma, El Reno and ending at U.S. Route 60 in Oklahoma, U.S. Highway 60 near White Oa ...

* **

Oklahoma State Highway 66B* * OR 66

Oregon Route 66 * PA-66

Pennsylvania Route 66 Pennsylvania Route 66 (PA 66) is a state highway in Western Pennsylvania. Its southern terminus is at U.S. Route 119 (US 119) near Interstate 70 (I-70) near New Stanton. Its northern terminus is at US 6 in Kane. The southernmost of t ...

Puerto Rico Highway 66 Puerto Rico Highway 66 (PR-66) is a main tollway which parallels Puerto Rico Highway 3 going from the city of Carolina, Puerto Rico via a 3 loops cloverleaf interchange with PR-26 and PR-3, a major exit in the form of a Trumpet interchange in Ca ...

South Carolina Highway 66 * Tennessee 66

Tennessee State Route 66 * Texas 66

Texas State Highway 66 State Highway 66 (SH 66) is a List of state highways in Texas, state highway in the U.S. state of Texas, connecting Garland, Texas, Garland to Greenville, Texas, Greenville. The route runs roughly parallel to Interstate 30 (Texas), Interstate ...