Nangqên County, or Nangchen (Tibetan: ནང་ཆེན་རྫོང་།, Wylie: nang chen rdzong, ZYPY: Nangqên Zong) or Nangqian County (simplified Chinese: 囊谦县; traditional Chinese: 囊謙縣; pinyin: Nángqiān Xiàn), is a county of the Yushu Tibetan Autonomous Prefecture and is the southernmost county-level division of Qinghai province, China, bordering the Tibet Autonomous Region to the south. 
囊谦县 · ནང་ཆེན་རྫོང་།
Location of Nangqên County (red) within Yushu Prefecture (yellow) and Qinghai
|Country||People's Republic of China|
|Time zone||UTC+8 (China Standard)|
The county seat is Xangda (shor mda’ / Template:Zh-Latn 香达镇), built in a side valley and on the right bank of the Dza Chu (upper reaches of the Mekong). In 2000, the county's population amounted to 57,387 people, inhabiting a surface of 11,539 km2 (4,455 sq mi).
The county's name is derived from the former king (nang chen rgyal po) and kingdom of Nangchen, a tribal confederation that adhered to the Chinese government of Gansu (after 1928 to newly established Qinghai province), but was highly autonomous. The present-day's county comprises the core area of that kingdom.
Nangqên is divided into one town and 9 townships:
- "Jang Tana". The Treasury of Lives. Retrieved 2017-08-05.
- "Tana Sengge Nam Dzong" - the Monastery of Ling, in: Andreas Gruschke, The Cultural Monuments of Tibet’s Outer Provinces: Kham vol. 2 - The Qinghai Part of Kham (Yushu Autonomous Prefecture), Bangkok 2004, pp.110-115.
- Tanma Jamyang Tsultrim: "Cultural Relics of the Tana Monastery in Yushu and Gesar", in: Tibet Studies, 1991, No.1, S. 184-190.
- Tana monastery, (towards) Ji'nyinsib, Qinghai, CN. Mapping Buddhist Monasteries, accesssed August 5, 2017.