List of highways numbered 168

• Alabama State Route 168
• Arkansas Highway 168
• California State Route 168
• Connecticut Route 168
• Farm to Market Road 168
• Georgia State Route 168
• Illinois Route 168
• Indiana State Road 168
• Japan National Route 168
• K-168 (Kansas highway)
• Kentucky Route 168
• Louisiana Highway 168
• M-168 (Michigan highway)
• Maine State Route 168
• Maryland Route 168
• Massachusetts Route 168
• Missouri Route 168
• National Route 168 (Costa Rica)
• Nevada State Route 168
• New Jersey Route 168
• New York State Route 168
• North Carolina Highway 168
• Ohio State Route 168
• Pennsylvania Route 168
• Prince Edward Island Route 168
• Puerto Rico Highway 168
• South Dakota Highway 168
• Tennessee State Route 168
• Texas State Highway 168
• Texas State Highway Loop 168
• U.S. Route 168
• Utah State Route 168
• Virginia State Route 168
• Washington State Route 168
• Wisconsin Highway 168