List of highways numbered 338

Canada

• Manitoba Provincial Road 338
• Prince Edward Island Route 338
• Quebec Route 338

  Hungary

• Main road 338

  Japan

• Japan National Route 338

  Thailand

• Highway 338

  United States

• Georgia State Route 338
• Kentucky Route 338
• Maryland Route 338
• Nevada State Route 338
• New Mexico State Road 338
• New York:
• * New York State Route 338
• * County Route 338
• * County Route 338
• * County Route 338
• Ohio State Route 338
• * Ohio State Route 338J
• Pennsylvania Route 338
• Puerto Rico Highway 338
• Tennessee State Route 338
• Texas:
• * Texas State Highway 338
• * Texas State Highway Loop 338
• Virginia State Route 338
• Wyoming Highway 338