Duoma, Doima, or Duomaxiang (Chinese: 多玛乡) is a village and township-level division of Nyima County in the Nagqu Prefecture of the Tibet Autonomous Region, in China. It is located roughly 140 kilometres (87 mi) west of Amdo Town and roughly 50 kilometres (31 mi) north of Siling Co, near the western bank of a lake at the foot of the Tanggula Mountains.