Masakazu Katsura (桂 正和, Katsura Masakazu, born December 10, 1962) is a Japanese manga artist, known for several works of manga, including Wing-Man, Shadow Lady, DNA², Video Girl Ai, I"s, and Zetman.

He has also worked as character designer for Iria: Zeiram the Animation, Tiger & Bunny and Garo -Guren no Tsuki-, as well as the video game Astral Chain.

I"s was adapted into two OVA series: one two-episode side story, and one six-episode summary of the manga.

[2][3] The two became friends in the early 1980s, having been introduced by their mutual editor Kazuhiko Torishima, and have even parodied each other in their own manga.

[1][4] Toriyama credits Katsura with coming up with the idea to have two characters "fuse" together in Dragon Ball, leading to the Fusion technique.