List of highways numbered 450

The following highways are numbered 450:

Canada

• Manitoba Provincial Road 450
• New Brunswick Route 450
• Newfoundland and Labrador Route 450

Japan

• Route 450 (Japan)

United States

• U.S. Route 450 (former)
• Florida State Road 450
• Indiana State Road 450
• Iowa Highway 450
• Maryland Route 450
• Mississippi Highway 450
• New Mexico State Road 450
• Ohio State Route 450
• Puerto Rico Highway 450
• Wyoming Highway 450