Yoko and Yōko (ヨウコ, ようこ) are Japanese feminine given names.
The name Yoko is almost always written with the kanji 子 (ko), meaning "child".
The syllable ko is not generally found at the end of masculine names.
Some of the meanings of the kanji used to write it are: The masculine name Yōkō, as in the given name of pro boxer Yoko Gushiken (具志堅 用高), is transliterated similarly, but in Japanese it is written and pronounced differently.
A family name, Yokoo, as in Yoko Taro (横尾 太郎), also exists.