Yōko Yaguchi (矢口 陽子, Yaguchi Yōko, born Kiyo Katō, 27 August 1921 in Shanghai – 1 February 1985) was a Japanese actress, and the wife of Japanese filmmaker Akira Kurosawa for 39 years. She had two children with Kurosawa: a son named Hisao and a daughter named Kazuko. Upon her death, she was survived by her two children and four grandchildren, three from son Hisao's marriage to Hiroko Hayashi and one from daughter Kazuko Karosawa.