Simwŏnsa is a Korean Buddhist temple located in Yŏntan-gun, North Hwanghae Province, North Korea. The temple contains one of the oldest wooden buildings in North Korea, as well as a famous peach tree and stupas from the late Koryo dynasty.

Pogwang Hall (보광전/普光殿) Built in 1374, is the fourth oldest wooden building in North Korea, and houses a painting by the famous Neo-Confucian scholar Yi Saek. The hall is notable for its elaborate doors decorated with carved lotus blossoms, fish, birds, and snakes.

Ungjin Hall (응진전/雄津殿) The former monk's dormitory, this simple hall now houses the complex's caretakers.

See also National Treasures of North Korea Korean Buddhism Korean architecture