Hirari Mizui (?? ???, Mizui Hirari, born 22 July 2000) is a Japanese badminton player who educated at the Futaba future school.
She was the girls' singles bronze medalist at the 2017 Asian Junior Championships.
Mizui participated at the 2018 Summer Youth Olympics in Buenos Aires, Argentina, and join the team Theta settled the bronze medal in the mixed team event.