| Justin Conn | |
| Birth Date: | 29 August 1988 |
| Birth Place: | Fredericton, New Brunswick |
| Team: | BC Lions |
| Status: | Active |
| Import: | no |
| Position1: | Linebacker |
| Height Ft: | 6 |
| Height In: | 3 |
| Weight Lb: | 230 |
| College: | Bishop's |
| Cfldraftedyear: | 2010 |
| Cfldraftedround: | 6 |
| Cfldraftedpick: | 47 |
| Playing Years1: | – |
| Playing Team1: | Montreal Alouettes |
| Playing Team2: | Calgary Stampeders |
| Cfl: | 3221 |
Justin Conn (born August 29, 1988) is a retired professional Canadian football linebacker who last played with the BC Lions in 2012. He was drafted 47th overall by the Montreal Alouettes in the 2010 CFL Draft. He played college football for the Bishop's Gaiters.