| Joseph William Holmes | |
| Office1: | Ontario MPP |
| Term Start1: | 1898 |
| Term End1: | 1904 |
| Predecessor1: | Jacob Baxter |
| Successor1: | Jacob Kohler |
| Constituency1: | Haldimand |
| Party: | Liberal |
| Birth Date: | 4 July 1842 |
| Birth Place: | Selkirt, Canada West |
| Occupation: | Farmer |
Joseph William Holmes (July 4, 1842 - August 24, 1926)[1] was a farmer and politician in Ontario, Canada. He represented Haldimand in the Legislative Assembly of Ontario from 1898 to 1904 as a Liberal.
The son of William Holmes and Mary Hoover, he was born in Selkirt, Canada West. Holmes served nine years as reeve of Rainham township and ten years as reeve of Walpole township. He also served on the council for Haldimand County.[2]