Mari Nishio (西尾 まり, Nishio Mari, born April 2, 1974) is a Japanese actress. Her real name is Mari Kitazawa (北澤 麻里, Kitazawa Mari). She was born in Tokyo and graduated from Asia University Faculty of Business Administration. She is managed by SIS Company. Her blood type is A and she is 158 cm tall. Her hobby is mountaineering. She made her debut in 1979 as a child actress under her real name in the TV series Kusa Moeru.