| Seiji Yamada | |
| Fullname: | 山田 誠司 (Yamada Seiji) |
| Birth Date: | 19 March 1966 |
is a Japanese ski mountaineer.
Yamada won the first Asian championship of ski mountaineering in 2007. Only the New Zealander Grant Guise topped his time, but did not count in the continental championship ranking because he was not an Asian country national.[1]