List of highways numbered 121

Route 121 or Highway 121 can refer to multiple roads:

This list is incomplete; you can help by . (August 2008)

Argentina[]

• National Route 121

Canada[]

• New Brunswick Route 121
• Ontario Highway 121
• Prince Edward Island Route 121

Costa Rica[]

• National Route 121

Japan[]

• Japan National Route 121

United States[]

• U.S. Route 121 (proposed)
  • U.S. Route 121 (former)
• Alabama State Route 121 (former)
• Arkansas Highway 121
• California State Route 121
• Colorado State Highway 121
• Connecticut Route 121
• Florida State Road 121
  • County Road 121A (Alachua County, Florida)
  • County Road 121 (Duval County, Florida)
• Georgia State Route 121
• Hawaii Route 121
• Illinois Route 121
• Indiana State Road 121
• K-121 (Kansas highway) (former)
• Kentucky Route 121
• Louisiana Highway 121
• Maine State Route 121
• Maryland Route 121
• Massachusetts Route 121
• M-121 (Michigan highway)
• Minnesota State Highway 121
  • County Road 121 (Hennepin County, Minnesota)
• Missouri Route 121
• Nebraska Highway 121
• Nevada State Route 121
• New Hampshire Route 121
  • New Hampshire Route 121A
• New Mexico State Road 121
• New York State Route 121
  • County Route 121 (Herkimer County, New York)
  • County Route 121 (Jefferson County, New York)
  • County Route 121 (Montgomery County, New York)
  • County Route 121 (Niagara County, New York)
  • County Route 121 (Seneca County, New York)
  • County Route 121 (Steuben County, New York)
  • County Route 121 (Sullivan County, New York)
• North Carolina Highway 121
• Ohio State Route 121
• Pennsylvania Route 121
• Rhode Island Route 121
• South Carolina Highway 121
• Texas State Highway 121
  • former 121 Tollway (now Sam Rayburn Tollway)
  • Texas State Highway Loop 121
  • Texas State Highway Spur 121 (former)
  • Farm to Market Road 121
• Utah State Route 121
• Vermont Route 121
• Virginia State Route 121
  • Virginia State Route 121 (1923-1926) (former)
  • Virginia State Route 121 (1927-1928) (former)
  • Virginia State Route 121 (1928-1933) (former)
• Washington State Route 121
• Wisconsin Highway 121

Territories

• Puerto Rico Highway 121

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