The following highways are numbered 330:

• Manitoba Provincial Road 330
• New Brunswick Route 330
• Newfoundland and Labrador Route 330
• Nova Scotia Route 330
• Prince Edward Island Route 330

• China National Highway 330

• National Route 330

• National Highway 330 (India)

• Japan National Route 330

• U.S. Route 330 (former)
• Arkansas Highway 330
• California State Route 330
• Colorado State Highway 330
• Georgia State Route 330
• Indiana State Road 330 (former)
• Iowa Highway 330
• Kentucky Route 330
• Louisiana Highway 330
• Maryland Route 330
• Minnesota State Highway 330
• Mississippi Highway 330
• Montana Secondary Highway 330
• New Mexico State Road 330
• New York:
  • New York State Route 330 (former)
  • County Route 330 (Erie County, New York)
• Ohio State Route 330
• Puerto Rico Highway 330
• Tennessee State Route 330
• Texas:
  • Texas State Highway 330 (former)
  • Texas State Highway Spur 330
  • Farm to Market Road 330
• Virginia State Route 330
  • Virginia State Route 330 (former)
• Wyoming Highway 330