Route 6, or Highway 6, may refer to routes in the following countries:

• AH6 Asian Highway 6
• E6 European route E6
• E006 European route E006

• National Road SH6

• Buenos Aires Provincial Route 6

• A6 (Sydney)

• Logan Motorway
• Flinders Highway, Queensland

• Huon Highway

• F6 Extension (Proposed)

• Nordost Autobahn

• Route 6 (Bolivia)

• A6 motorway (Bulgaria)
• I-6 road (Bulgaria)

• National Highway 6 (Cambodia)

• Alberta Highway 6
• British Columbia Highway 6
• Manitoba Highway 6
• New Brunswick Route 6 (1927–1965)
• New Brunswick Route 6 (1965–1984)
• Northwest Territories Highway 6
• Nova Scotia Trunk 6
• Ontario Highway 6
• Prince Edward Island Route 6
• Quebec Route 6 (former)
• Saskatchewan Highway 6
• Yukon Highway 6 (Canol Road)

• G6 Expressway

• National Route 6

• D6 Motorway
• I/6 Highway (in Czech)

• RN-6 (Djibouti)

• DR-6

• Autoroute_A6 (french)

• Bundesautobahn 6

• A6 motorway (Attiki Odos)
• EO6 road

• Route 6 (Hong Kong)

• M6 motorway (Hungary)
• Main road 6 (Hungary)

• National Highway 6 (India)

• Indonesian National Route 6

• Freeway 6 (Iran)

• Highway 6 (Iraq)

• M6 motorway (Republic of Ireland)
• N6 road (Ireland)

• Highway 6 (Israel)

• Autostrada A6
• RA 6

• National Route 6
• Jōban Expressway
• Sanriku Expressway
• Sendai-Hokubu Road
• Sendai-Tōbu Road
• Route 6 (Nagoya Expressway)

• National Route 6

• FT 6 Malaysia Federal Route 6

• State Highway 6 (New Zealand)

• Nigeria Trunk Road A6

• National Route 6

• C-6 Circumferential Road 2
• R-6 Radial Road 6
• N6 highway (Philippines)
• E6 expressway (Philippines)

• Drumul Naţional 6
• A6 motorway (Romania)

• M6 highway (Russia)

• National freeway 6

• Motorway 6 (Thailand)

• Highway M06 (Ukraine)

• M6 motorway
• M6 Toll
• A6 road (England)
• A6 road (Isle of Man)
• A6 road (Northern Ireland)

• U.S. Route 6
  • U.S. Route 6N
  • U.S. Route 6N (New York) (former)
  • U.S. Route 6N (Pennsylvania 1931-1935) (former)
• New England Interstate Route 6 (former)
  • New England Route 6B
• Alabama State Route 6 (former)
• Alaska Route 6
• Arkansas Highway 6 (former)
• California State Route 6 (former)
• Delaware Route 6
• Florida State Road 6
  • County Road 6 (Columbia County, Florida)
• Georgia State Route 6
• Idaho State Highway 6
• Illinois Route 6
• Indiana State Road 6 (former)
• K-6 (Kansas highway)
• Kentucky Route 6
• Louisiana Highway 6
  • Louisiana State Route 6 (former)
• Maine State Route 6
• Maryland Route 6
• M-6 (Michigan highway)
• Minnesota State Highway 6
  • County Road 6 (Dakota County, Minnesota)
  • County Road 6 (Goodhue County, Minnesota)
  • County Road 6 (Hennepin County, Minnesota)
  • County Road 6 (Ramsey County, Minnesota)
  • County Road 6 (St. Louis County, Minnesota)
  • County Road 6 (Washington County, Minnesota)
• Mississippi Highway 6
• Missouri Route 6
• Nevada State Route 6 (former)
  • Nevada State Route 6B (former)
  • Nevada State Route 6C (former)
• New Jersey Route 6 (former)
  • County Route 6 (Monmouth County, New Jersey)
    • County Route 6B (Monmouth County, New Jersey)
• New Mexico State Road 6
• New York State Route 6 (1924–1927) (former)
  • County Route 6 (Albany County, New York)
  • County Route 6 (Allegany County, New York)
  • County Route 6 (Cattaraugus County, New York)
  • County Route 6 (Chautauqua County, New York)
  • County Route 6 (Chenango County, New York)
  • County Route 6 (Dutchess County, New York)
  • County Route 6 (Erie County, New York)
  • County Route 6 (Franklin County, New York)
  • County Route 6 (Genesee County, New York)
  • County Route 6 (Greene County, New York)
  • County Route 6 (Hamilton County, New York)
  • County Route 6 (Jefferson County, New York)
  • County Route 6 (Madison County, New York)
  • County Route 6 (Niagara County, New York)
  • County Route 6 (Oneida County, New York)
  • County Route 6 (Ontario County, New York)
  • County Route 6 (Orange County, New York)
  • County Route 6 (Oswego County, New York)
  • County Route 6 (Rensselaer County, New York)
  • County Route 6 (Schoharie County, New York)
  • County Route 6 (Schuyler County, New York)
  • County Route 6 (St. Lawrence County, New York)
  • County Route 6 (Steuben County, New York)
  • County Route 6 (Suffolk County, New York)
  • County Route 6 (Tioga County, New York)
• North Carolina Highway 6 (former)
• North Dakota Highway 6
• Ohio State Route 6 (1923-1927) (former)
  • Ohio State Route 6 (1927) (former)
  • Ohio State Route 6 (pre-1931) (former)
• Oklahoma State Highway 6
• Oregon Route 6
• Pennsylvania Route 6 (former)
• Rhode Island Route 6
• South Carolina Highway 6
• Tennessee State Route 6
• Texas State Highway 6
  • Texas State Highway Loop 6 (former)
  • Texas State Highway Spur 6
  • Farm to Market Road 6
  • Texas Park Road 6
  • Texas Recreational Road 6
• Utah State Route 6
• Virginia State Route 6
• Washington State Route 6
  • Washington State Highway 6 (former)
• West Virginia Route 6

Territories

• American Samoa Highway 006
• Guam Highway 6
• Puerto Rico Highway 6

• Route 6 Joaquín Suárez

• T6 road (Zambia)
• M6 road (Copperbelt)

• List of A6 roads
• List of highways numbered 6A