The following highways are numbered 146:

• BR-146

• Prince Edward Island Route 146

• National Route 146

• Route nationale 146

• National Highway 146 (India)

• Japan National Route 146
• Fukuoka Prefectural Route 146
• Nara Prefectural Route 146

• Malaysia Federal Route 146

• A146 road
• B146 road

• Alabama State Route 146
• Arkansas Highway 146
• California State Route 146
• Connecticut Route 146
• Florida State Road 146 (former)
  • County Road 146 (Hamilton County, Florida)
  • County Road 146 (Jefferson County, Florida)
  • County Road 146 (Leon County, Florida)
  • County Road 146 (Madison County, Florida)
• Georgia State Route 146
• Illinois Route 146
• Indiana State Road 146 (former)
• Iowa Highway 146
• K-146 (Kansas highway)
• Kentucky Route 146
• Louisiana Highway 146
• Maine State Route 146
• Maryland Route 146
• Massachusetts Route 146
• M-146 (Michigan highway) (former)
• Missouri Route 146
• Nevada State Route 146
• New Mexico State Road 146
• New York State Route 146
  • County Route 146 (Cayuga County, New York)
  • County Route 146 (Onondaga County, New York)
  • County Route 146 (Seneca County, New York)
• North Carolina Highway 146
• Ohio State Route 146
• Oklahoma State Highway 146
• Pennsylvania Route 146
• Rhode Island Route 146
• South Carolina Highway 146
• Tennessee State Route 146
• Texas State Highway 146
  • Texas State Highway Loop 146 (former)
  • Texas State Highway Spur 146
  • Farm to Market Road 146
• Utah State Route 146 (1933–2014) (former)
• Virginia State Route 146
  • Virginia State Route 146 (1933-1949) (former)
• Wisconsin Highway 146

Territories

• Puerto Rico Highway 146

• List of highways numbered 146A