Yu is the pinyin romanisation of several Chinese family names. However, in the Wade–Giles romanisation system, Yu is equivalent to You in pinyin. "Yu" may represent many different Chinese characters, including 余, 于, 由, 魚 (鱼), 漁, 渔, 楀, 俞, 喻, 兪, 於, 遇, 虞, 郁, 尉, 禹, 游, 尤, 庾, 娛, 娱, and 茹. Yu is also a common Korean family name (also romanised as Yoo or Ryu) and may represent these characters: 劉, 兪, 庾, 柳.