List of highways numbered 155

Route 155 or Highway 155 may refer to:

Canada

• Prince Edward Island Route 155 (Thompson Road)
• Quebec Route 155
• Saskatchewan Highway 155
• Winnipeg Route 155

Japan

• Japan National Route 155

United States

• Interstate 155
• Alabama State Route 155
• Arkansas Highway 155
• California State Route 155
• Connecticut Route 155
• Florida State Road 155
• Georgia State Route 155
• Illinois Route 155
• Kentucky Route 155
• Louisiana Highway 155
• Maine State Route 155
• Maryland Route 155
• M-155 (Michigan highway)
• New Hampshire Route 155
  • New Hampshire Route 155A
• New Jersey Route 155 (former)
• New York State Route 155
• Ohio State Route 155
• Pennsylvania Route 155
• Tennessee State Route 155
• Texas State Highway 155
  • Texas State Highway Loop 155
  • Farm to Market Road 155 (Texas)
• Utah State Route 155
• Vermont Route 155
• Virginia State Route 155
• Washington State Route 155
• Wisconsin Highway 155