貴子, 贵子 or 귀자, meaning 'noble, child', may refer to:
Atsuko, a Japanese feminine given name Guizi, Xinyi, Maoming, Guangdong, China Gwija, a given name for South Korean writer Yang Gwija (born 1955) Kiko, a Japanese feminine given name Takako, a Japanese feminine given name
See also Guizi, a Chinese slang term Kiko (disambiguation)