Nian (), also transliterated Nien, is a Chinese surname listed in the Hundred Family Surnames.

It was not one of the 400 most common surnames in China as of 2013.Yuan Yida (袁义达), Qiu Jiaru (邱家儒). 中国四百大姓. Beijing Book Co. Inc., 1 January 2013

Notable people with the surname include:

Ah Nian (born 1965), filmmaker Nian Gengyao (1679–1726), Qing dynasty military commander Nian Guangjiu (1940–2023), melon seed entrepreneur Nian Weisi (born 1933), association football player Nian Yun (born 1982), Olympic swimmer

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