List of highways numbered 409

Canada

• Manitoba Provincial Road 409
• Ontario Highway 409

  Costa Rica

• National Route 409

  Japan

• Japan National Route 409

  Norway

• Fylkesvei 409 Arendal-Tromøya is a single lane ringed road on Tromøy Island and connected to Tromøysundet on the mainland via Tromøy Bridge in southwest Norway.

  United States

• Georgia State Route 409 unsigned designation for Interstate 24
• Louisiana Highway 409
• Maryland Route 409
• New York:
• * New York State Route 409
• * New York State Route 409
• * County Route 409
• * County Route 409
• Pennsylvania Route 409
• Puerto Rico Highway 409
• Virginia State Route 409
• Washington State Route 409