or
Player positions provided by the CFL and errors are known to exist
| Name | Position | Regular GP | # of Seasons (Years) | Also played for |
|---|---|---|---|---|
| Uguccioni, Ace | G, T | 2 | 1 (1948) | |
| Unamba, Don | DB, LB | 29 | 2 (2017–2018) | EDM, MTL, OTT, SSK, WPG |
| Underwood, P.W. “Bear” | G, T | 24 | 2 (1957–1958) | |
| Underwood, Tiquan | R, SB, WR | 17 | 2 (2015–2016) | MTL |
| Ungerer, David III | WR | 17 | 2 (2019, 2021) | |
| Uren, Matt | R | 1 | 1 (2016) | |
| Urias, Jerry | DB | 8 | 1 (2000) | |
| Ursic, Eric | QB | 2 | 1 (1995) | TOR |
| “U” player count: 8 | ||||