Kayoko is a feminine Japanese given name. Notable people with the name include:
Kayoko Kawahigashi (born 1958), Japanese world champion table tennis playerKayoko Fukushi (born 1982), Japanese long-distance runnerKayoko Kishimoto (born 1960), Japanese actressKayoko Fujii (born 1961), Japanese actress and voice actressKayoko Fujimori, Japanese artistKayoko Haruyama (born 1979), Japanese professional wrestlerKayoko Obata (born 1971), Japanese long-distance runner from JapanKayoko Shibata (born 1980), Japanese actress, singer, and modelKayoko Sugiyama (born 1961), Japanese Olympic volleyball playerKayoko Hayashi, Japanese voice actressKayoko Shimizu, member of Liberal Democratic Party and Environment Agency Director GeneralKayoko Fukuoka, Japanese Olympic tennis playerFictional characters:
Kayoko Kotohiki, a character in Battle Royale