| John Macdonald | |
| Number: | 91 |
| Position1: | DL |
| Birth Date: | 30 August 1978 |
| Birth Place: | Hamilton, Ontario |
| Height Ft: | 6 |
| Height In: | 2 |
| Weight Lbs: | 275 |
| Import: | n |
| Cis: | McGill |
| Cfldraftedyear: | 2002 |
| Cfldraftedround: | 1 |
| Cfldraftedpick: | 7 |
| Cfldraftedteam: | Hamilton Tiger-Cats |
| Playing Years1: | – |
| Playing Team1: | Hamilton Tiger-Cats |
| Cfl-Archive: | https://web.archive.org/web/20150512003232/http://www.cfl.ca/roster/show/id/264 |
John Macdonald (born August 30, 1978) is a former professional Canadian football defensive linemen. He was drafted by the Hamilton Tiger-Cats in the first round of the 2002 CFL Draft. He played college football at McGill University. John was raised in Simcoe, Ontario and is a Mohawk from Six Nations of the Grand River, Ontario.
John is currently a teacher for the Grand Erie District School Board. He is married with two children and lives in Brantford, Ontario.