National Route 1(Korean: 국도 제1호선; RR: Gukdo Je Il(1) Hoseon) is a national highway in South Korea. It connects Mokpo, South Jeolla Province with the city of Paju in Gyeonggi-do. Before the division of the Korean peninsula, the highway ran until Sinuiju, North P'yongan Province, in present-day North Korea.