The Mangyeong River (만경강, 萬頃江) is a river that flows through the southwest of Jeollabuk-do, by the cities of Gimje, Iksan, and Jeonju. It is 80.86 km in length and has a total watershed of 1,504.35㎢. It begins from the mountain Wonjeongsan (원정산, 遠灯山) and combines with Jeonjucheon (전주천, 全州川) among others.