Wolchulsan (월출산) is a mountain located in South Jeolla province, South Korea, and spans both Gangjin and Yeongam counties. At its peak, Cheonhwangbong, it rises to 808.7 meters, making it the highest point in Gangjin County.
It lies in a national park of the same name. Wolchulsan National Park is the smallest national park of South Korea, with an area of 41.0 km². A notable feature of the mountain is the "Cloud Bridge" (구름다리) a small suspension bridge that spans two peaks.