| Masahiro Yamada | |
| Native Name: | 山田 正弘 |
| Native Name Lang: | ja |
| Birth Date: | 26 February 1931 |
| Birth Place: | Tokyo |
| Death Place: | Shinjuku, Tokyo |
| Occupation: | Screenwriter |
, real name, was a Japanese screenwriter. He often worked with Yoshishige Yoshida and also penned scripts for Ultraman and other episodes in the Ultra series.
He died of lung cancer in Shinjuku, Tokyo, on 10 August 2005 at the age of 74.[1]