The following highways are numbered 175:

Canada

• Prince Edward Island Route 175
• Quebec Route 175

Costa Rica

• National Route 175

Japan

• Japan National Route 175

Mexico

• Mexican Federal Highway 175

United States

• Interstate 175
• U.S. Route 175
• Alabama State Route 175
• Arkansas Highway 175
  • Arkansas Highway 175 Spur
• California State Route 175
• Connecticut Route 175
• Florida State Road 175
• Georgia State Route 175 (former)
• Illinois Route 175 (former)
• Iowa Highway 175
• K-175 (Kansas highway)
• Kentucky Route 175
• Louisiana Highway 175
• Maine State Route 175
• Maryland Route 175
• M-175 (Michigan highway) (former)
• Minnesota State Highway 175
• Missouri Route 175
• New Hampshire Route 175
  • New Hampshire Route 175A
• New Jersey Route 175
• New Mexico State Road 175
• New York State Route 175
  • New York State Route 175X
• North Carolina Highway 175
• Ohio State Route 175
• Tennessee State Route 175
• Texas State Highway 175
  • Farm to Market Road 175 (Texas)
• Utah State Route 175 (former)
• Virginia State Route 175
• Wisconsin Highway 175
• Wyoming Highway 175

Territories

• Puerto Rico Highway 175