Yuko Tsushima (?? ?? Tsushima Yuko, born 30 March 1947) is the pen name of Satoko Tsushima, a contemporary Japanese fiction writer, essayist and critic.
She is the daughter of famed novelist Osamu Dazai, who died when she was one year old.
While attending Shirayuri Women’s University she published her first fiction. At age 24 she published her first collection of stories, Carnival (Shaniku-sai). Now a prolific writer, she is the winner of several literary prizes.
In 1972 her story ½Pregnant With A Fox½ (½Kitsune wo haramu½) was a runner-up for the Akutagawa Prize. She was awarded the first annual Noma Prize for New Writers in 1979. In 1983 she was awarded the Kawabata Prize for her short story ½The Silent Traders½ (½Danmari ichi½). In 1998 she was awarded the 34th Tanizaki Prize and the 51st Noma Prize for her novel Mountain of Fire: Account Of A Wild Monkey (Hi no yama – yamazaruki).