AH15

Asian Highway 15 (AH15) is a road in the Asian Highway Network running from Hồng Lĩnh, Vietnam to Udon Thani, Thailand connecting AH1 to AH12. The route is as follows:

Vietnam

• QL8: Vinh () - Cau Treo

Laos

• Route 8: Nam Phao - Vieng Kham
• Route 13 (Concurrent with ): Vieng Kham - Thakhek

Thailand

• Route 295: Third Thai–Lao Friendship Bridge
• Route 212: At Samat - Nakhon Phanom
• Route 22: Nakhon Phanom - Udon Thani