Yùn () is a Chinese surname. It is not in the top 400 most common surnames in China, nor was it included in the Hundred Family Surnames poem.
Notable people Yun Bing (惲冰, fl. 17th century), artist specialising in the "boneless" technique Yun Shouping (惲壽平, 1633 – 1690), also known as Yun Nantian (南田), one of the Six Masters of the early Qing period Yun Zhu (惲珠, 1771–1833), a poet, painter, and anthologist Yun Daiying (恽代英, 1895–1931), early leader of the Communist Party executed by the Kuomintang Yun Zhiwei (恽之玮, born 1982), mathematician specialising in number theory