You (Mandarin pronunciation: [iɤʊ]) is the pinyin romanization of several Chinese family names including 尤 Yóu, 游 Yóu, 㳺 Yóu, 犹 Yóu, 由 Yóu, 右 Yòu, 幽 Yōu, etc.
Among these names, 尤 Yóu and 游 Yóu are relatively common.
尤 Yóu is the 19th surname in Hundred Family Surnames.
In Wade–Giles romanization system, You is spelled as Yu.
Notable people with one of these surnames include: It is the 19th name on the Hundred Family Surnames poem.