
Mitsuko Mito (水戸光子 Mito Mitsuko, 23 March 1919 – 5 April 1981) was a Japanese actress. She appeared in more than 50 films between 1935 and 1973. Her real name was Mitsuko Sekiba.
In 1934, the year after she dropped out of Okazaki Municipal Girls' High School (now Aichi Prefectural Okazaki Kita High School), she moved from the Manpei Hotel in Nagoya to the Manpei Hotel in Atami where she was working. There, she was scouted by Shochiku director Isaburo Inoue, who happened to be staying at the hotel, and joined the Shochiku Kamata Studios .
In 1945, she married actor Morikawa Shin. She retired from acting and had a child, but divorced the following year. She returned to the big screen early in Omitsu no Endan, released in October of the same year. While she played cheerful, down-to-earth characters, after leaving Shochiku she also broadened her acting range by taking on dirty roles in films such as Woman, Osho, Outcome of War, Ugetsu Monogatari, and An Inn at Osaka.
She died of a liver tumor on April 5, 1981 at the age of 62.

Ugetsu
1953 · as Ohama

Samurai I: Musashi Miyamoto
1954 · as Oko

Samurai III: Duel at Ganryu Island
1956 · as Oko (uncredited)

Samurai II: Duel at Ichijoji Temple
1955 · as Oko

The Wandering Princess
1960 · as Izumi

Flame of My Love
1949 · as Chiyo

There Was a Father
1942 · as Fumi

The Sea of Beauty
1950

Men and War II: Land of Love and Sorrow
1971 · as Otaki

Men and War III: The Final Chapter
1973 · as Otaki

The Tale of Genji
1951 · as Aoi no ue

The Human Wall
1959

Men and War I: Prelude to Destiny
1970 · as Otaki

Asataro the Crow
1956

Mr. Thank You
1936

Haha to ko no mado
1957

The Tree of Love
1938

Only She Knows
1960