| Mori Masaki | |
| Native Name: | 真崎 守 |
| Native Name Lang: | ja |
| Birth Date: | March 10, 1941 |
| Birth Place: | Yokohama, Kanagawa Prefecture, Japan |
| Occupation: | Manga artist, anime director, screenwriter |
| Years Active: | 1963-1986 |
is a Japanese manga artist, screenwriter and director.
Masaki's career as an animator began in 1963 at Mushi Production, where he was involved in Kimba the White Lion. After a few more works, he left the studio in 1968 and dedicated himself to his work as a mangaka. In 1979, he returned to the film and worked at Studio Madhouse as a director and screenwriter. He directed Natsu e no Tobira and Haguregumo, later wrote the screenplay for the film adaptation of the manga Barefoot Gen and the sci-fi adventure . In 1986, Masaki retired from anime, although he continued his manga career into the 90s.