| Joseph Henry Ham | |
| Office1: | Ontario MPP |
| Term Start1: | 1914 |
| Term End1: | 1919 |
| Predecessor1: | Willoughby Staples Brewster |
| Successor1: | M.M. MacBride |
| Constituency1: | Brant South |
| Party: | Liberal |
| Birth Date: | 24 March 1867 |
| Birth Place: | Brantford, Ontario |
| Death Place: | Brantford, Ontario |
| Occupation: | Businessman |
| Spouse: | Mary Dennis (m. 1897) |
Joseph Henry Ham (March 24, 1867 - January 20, 1925) was an Ontario manufacturer and political figure. He represented Brant North in the Legislative Assembly of Ontario from 1914 to 1919 as a Liberal member.
He was born in Brantford, Ontario, the son of W. Ham; his parents came to Canada from England. He served on Brantford City Council. In 1897, he married Mary Dennis. He died in Brantford in 1925.