Henan Mongol Autonomous County (Chinese: 河南蒙古族自治县; pinyin: Hénán Ménggǔ Zìzhìxiàn; Mongolian: ᠡᡁᠨᠠᠨ ᠮᠣᠩᠭᠣᠯ ᠥᠪᠡᠷᠲᠡᠭᠡᠨ ᠵᠠᠰᠠᠬᠤ ᠵᠧᠦ; Tibetan: རྨ་ལྷོ་སོག་རིགས་རང་སྐྱོང་ཁུལ་, Wylie: rma-lho sog-rigs rang-skyong-khul) is an autonomous county in the south of Huangnan Tibetan Autonomous Prefecture in the province of Qinghai. Its administrative seat ("capital") is the town of Yêgainnyin (Youganning). Henan has an area of 6.250 km² and approximately 30,000 inhabitants (2004).