The following highways are numbered 350:

Canada[edit]

• Manitoba Provincial Road 350
• New Brunswick Route 350
• Newfoundland and Labrador Route 350
• Prince Edward Island Route 350
• Quebec Route 350
• Saskatchewan Highway 350

Japan[edit]

• Japan National Route 350

United States[edit]

• U.S. Route 350
• Arkansas Highway 350
• Georgia State Route 350 (former)
• Indiana State Road 350
• Louisiana Highway 350
• Maryland Route 350
• Mississippi Highway 350
• Missouri Route 350
• New York:
  • New York State Route 350
  • County Route 350 (Erie County, New York)
• Ohio State Route 350
• Oregon Route 350
• Pennsylvania Route 350
• Tennessee State Route 350
• Texas:
  • Texas State Highway 350
  • Farm to Market Road 350
• Virginia State Route 350
  • Virginia State Route 350 (former)
• Wyoming Highway 350