| Masahiko Yamada | |
| Native Name Lang: | ja |
| Office: | Minister of Agriculture, Forestry and Fisheries |
| Primeminister: | Yukio Hatoyama Naoto Kan |
| Term Start: | 2009 |
| Term End: | 2010 |
| Predecessor: | Motohiko Kondō Noritoshi Ishida |
| Successor: | Akira Gunji Takashi Shinohara |
| Birth Date: | 8 April 1942 |
| Birth Place: | Fukue, Nagasaki, Japan |
| Alma Mater: | Waseda University |
is a Japanese politician of the Democratic Party of Japan, a member of the House of Representatives in the Diet (national legislature). A native of Fukue, Nagasaki, a Roman Catholic, and graduate of Waseda University, he was elected to the House of Representatives for the first time in 1993 after unsuccessful runs in 1979, 1986 and 1990. Before running for office, he worked as a rancher and a lawyer.