Dennis Marvin Ham (March 14, 1941 – January 12, 2019) was a businessman and political figure in Saskatchewan, Canada.
He represented Swift Current from 1975 to 1982 in the Legislative Assembly of Saskatchewan as a Progressive Conservative and then Unionest Party member.
He was born in Swift Current, Saskatchewan, the son of Thomas Edward Ham.
In 1963, Ham married Sandra Gail Irene Piedalue.
He left the Provincial Conservative caucus in 1980 to join Dick Collver in the Unionest Party.