Yuko Mizutani (水谷 優子 Mizutani Yūko, November 4, 1964 – May 17, 2016) was a Japanese voice actress, actress, singer, and narrator from Ama District, Aichi. Throughout her life, she was attached to Production Baobab; she was attached to Aoni Production at the time of her death. Mizutani was best known for her roles of Sakiko Sakura in Chibi Maruko-chan, Mihoshi Kuramitsu in Tenchi Muyo!, Ikuko Tsukino in Sailor Moon Crystal, Soten in InuYasha, Sora Takenouchi in Digimon Adventure, Cheimin Noa in Mobile Suit Zeta Gundam and Pinoko in Black Jack. Mizutani was the official Japanese voice actress for Minnie Mouse and voiced her in the Kingdom Hearts franchise. Yuko narrated over Betty Boop's voice in 2007 for the Japanese Betty Boop DVD release by WOWWOW.
On May 17, 2016, Mizutani died as a result of breast cancer at the age of 51.