Yun (Chinese: ) is a Chinese surname, and is one of the earliest surnames in China. It is one of the Eight surnames of Zhurong and one of the Eight Great Surnames of Chinese Antiquity. The states of , , and of the Zhou dynasty are all of the Yun surname.《世本》:“逼阳，妘姓，祝融之孙，陆终第四子求言之后。”
See also Eight Great Surnames of Chinese Antiquity
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