Yumiko Ōshima(大島弓子Ōshima Yumiko, born August 31, 1947) is a female Japanese manga artist and a member of Year 24 group. She made her debut in 1968 with Paula's Tears in Weekly Margaret. She received the 1973 Japan Cartoonists Association Award for excellence for Mimoza Yashiki de Tsukamaete. She received the 1978 Kodansha Manga Award for shōjo for The Star of Cottonland, and the 2008 Tezuka Osamu Cultural Prize Short Story Award for "Cher Gou-Gou...mon petit chat, mon petit ami," a short story in the ongoing series Gū-gū datte Neko de aru. She is credited with popularizing the kemonomimi (catgirl) character type through her creation of Chibi-neko from The Star of Cottonland.