Masasumi Kakizaki (Japanese: 柿崎正澄, Hepburn: Kakizaki Masasumi, born May 18, 1978) is a Japanese manga artist.

He debuted in 2001 with the one-shot Two Tops prior to launching his first series, X-Gene, in 2002.

Rainbow: Nisha Rokubō no Shichinin, which he illustrated, won the Shogakukan Manga Award in the general category in 2005.