Yumbu Lagang (Tibetan: ཡུམ་བུ་བླ་སྒང།, Wylie: yum bu bla sgang) or Yumbu Lakhar (Tibetan: ཡུམ་བུ་བླ་མཁར།, Wylie: yum bu bla mkhar, also known as Yumbu Lakhang or Yungbulakang Palace) is an ancient structure in the Yarlung Valley in the vicinity of Tsetang, Nêdong County, the seat of Lhoka Prefecture, in the southern Tibet Autonomous Region of China.