Mio Satō (佐藤 澪, Satō Mio, born 12 February 1993) is a Japanese volleyball player who plays for the NEC Red Rockets.

While attending the Yamagata Municipal Commercial High School, Her team won fifth place at the national highschool tournament.

[5][6] In April 2011 Satō joined Shokei Gakuin University, her team qualified National Sports Festival and Empress's Cup in October 2014.

On 31 October 2014 Toyota Auto Body Queenseis announced her joining.

On 1 August 2019 NEC Red Rockets announced her joining the club.