Saki Shimizu (清水 佐紀, Shimizu Saki, born November 22, 1991 in Tokyo, Japan) is a J-pop singer. Her career began in 2002 when she passed the audition for Hello! Project Kids, an all-female teen pop group within Hello! Project. Since then, she has continued to sing in that group and has become a part of two smaller groups composed of Hello! Project Kids members, Berryz Kobo and ZYX. Currently, she is captain of J-pop band Berryz Kobo.