Tsunomaru (???, born 27 May 1970 in Chiba, Japan) is a Japanese manga artist who writes mostly shonen manga.
He debuted in 1991 with "Go Go Pocho Mukin" (GOGO??????), which received the Shonen Weekly Jump newcomer's award.
Tsunomaru is best known for the horse-racing comedy Midori no Makibao, which was adapted as a 61-episode anime television series and received the 1997 Shogakukan Manga Award for children's manga.