The Sŏhaeri Line or Ryongjŏng Line is a closed non-electrified 762 mm (2 ft 6 in) narrow-gauge railway line of the Korean State Railway in South Hwanghae Province, North Korea, running from Ch'ŏlgwang at the junction of the Ŭnnyul and Sŏhae Kammun lines to Ryongjŏng.