| John Priestner | |
| Birth Date: | 4 August 1958 |
| Birth Place: | Burlington, Ontario, Canada |
| Import: | no |
| Cis: | Western Ontario |
| Nfldraftedyear: | 1979 |
| Nfldraftedround: | 11 |
| Nfldraftedpick: | 280 |
| Nfldraftedteam: | Baltimore Colts |
| Cfldraftedyear: | 1979 |
| Cfldraftedround: | Territorial |
| Cfldraftedteam: | Hamilton Tiger-Cats |
| Position1: | Defensive back |
| Height Ft: | 6 |
| Height In: | 2 |
| Weight Lb: | 230 |
| Playing Years1: | 1980–1986 |
| Playing Team1: | Hamilton Tiger-Cats |
| Career Highlights: | CFL East All-Star (1981) |
William John Priestner (born August 4, 1958) is a Canadian football player who played professionally for the Hamilton Tiger-Cats.[1]