Machiko Kyō (Japanese: 京 マチ子 Hepburn: Kyō Machiko, March 25, 1924 – May 12, 2019) was a Japanese actress whose film work occurred primarily during the 1950s. She rose to extraordinary domestic praise in Japan for her work in two of the greatest Japanese films of the 20th century, Akira Kurosawa's Rashōmon and Kenji Mizoguchi's Ugetsu.

Machiko trained to be a dancer before entering films in 1949. The following year, she would achieve international fame as the female lead in Akira Kurosawa's classic film Rashōmon. Kyō starred in many more Japanese productions, including Kenji Mizoguchi's Ugetsu (1953) and Street of Shame (1956), Teinosuke Kinugasa's Gate of Hell (1953), Kon Ichikawa's Odd Obsession (1959), Yasujirō Ozu's Floating Weeds (1959), and Hiroshi Teshigahara's The Face of Another (1966).