| Masahiko Yamada | |
| Native Name Lang: | ja |
| Office: | Minister of Agriculture, Forestry and Fisheries |
| Primeminister: | Naoto Kan |
| Term Start: | 8 June 2010 |
| Term End: | 17 September 2010 |
| Predecessor: | Hirotaka Akamatsu |
| Successor: | Michihiko Kano |
| Office2: | Member of the House of Representatives |
| Constituency2: |
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| Term Start2: | 25 June 2000 |
| Term End2: | 16 November 2012 |
| Predecessor2: | Multi-member district |
| Successor2: | Yaichi Tanigawa |
| Term Start3: | 19 July 1993 |
| Term End3: | 27 September 1996 |
| Constituency3: | Nagasaki 2nd |
| Birth Date: | 8 April 1942 |
| Birth Place: | Fukue, Nagasaki, Japan |
| Party: | Independent |
| Otherparty: | |
| Alma Mater: | Waseda University |
is a Japanese politician who served as a member of the House of Representatives in the Diet (national legislature) between 1993 and 1996, and between 2003 and 2012. 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.