Mitsuko Horie is a Japanese actress, voice actress and singer. She was born in Yamato, Kanagawa.
She has voiced several characters throughout her career, such as Sailor Galaxia in Sailor Moon Sailor Stars and Remi in the Nippon Animation World Masterpiece Theater series Remi, Nobody's Girl. She is also part of the judging panel at the Animax Anison Grand Prix, with fellow singers Ichirou Mizuki, and Yumi Matsuzawa. As a voice actress, she is contracted to Aoni Production.