Olangchung Gola (locally as Walung or Holung, Tibetan: ཝ་ལུང་, Wylie: wa lung, historically transcribed as Wallanchoon) is a village (previously: a village development committee) in ward no. 7 of Phaktanglung rural municipality of Taplejung District of Province No. 1 in Nepal. Olangchung is surrounded by Lelep village to the east and Tibet to the north, Sankhuwasabha District to west and Mikkwakhola rural municipality to south. It is located to the north of Tamor River in the mountainous area in the northwest of Taplejung District bordering Tibet, China. Lately the river flowing next to the village is gradually expanding towards the village posing a serious threat of submerging the village.