This article is a complete list of seasons completed by the Ottawa Redblacks . The Redblacks have played in the Canadian Football League (CFL) since 2014.
| Grey Cup Championships | East Division Championships | Regular season Championships |
| League season | Club season | League | Division | Finish | Wins | Losses | Ties | Playoffs | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2014 | 2014 | CFL | East | 4th | 2 | 16 | 0 | ||||||
| 2015 | 2015 | CFL | East | 1st | 12 | 6 | 0 | Won East Final (Tiger-Cats) 35–28 Lost Grey Cup (Eskimos) 26–20 | |||||
| 2016 | 2016 | CFL | East | 1st | 8 | 9 | 1 | Won East Final (Eskimos) 35–23 Won Grey Cup (Stampeders) 39–33 | |||||
| 2017 | 2017 | CFL | East | 2nd | 8 | 9 | 1 | Lost East Semi-Final (Roughriders) 31–20 | |||||
| 2018 | 2018 | CFL | East | 1st | 11 | 7 | 0 | Won East Final (Tiger-Cats) 46–27 Lost Grey Cup (Stampeders) 27–16 | |||||
| 2019 | 2019 | CFL | East | 4th | 3 | 15 | 0 | ||||||
| 2020 | 2020 | CFL | East | Season cancelled due to COVID-19 pandemic | |||||||||
| 2021 | 2021 | CFL | East | 4th | 3 | 11 | 0 | ||||||
| 2022 | 2022 | CFL | East | 4th | 4 | 14 | 0 | ||||||
| 2023 | 2023 | CFL | East | 4th | 4 | 14 | 0 | ||||||
| 2024 | 2024 | CFL | East | 3rd | 9 | 8 | 1 | Lost East Semi-Final (Argonauts) 58–38 | |||||
| 2025 | 2025 | CFL | East | 4th | 4 | 14 | 0 | ||||||
| Regular season total (2014–2025) | 68 | 123 | 3 | ||||||||||
| Playoff total (2014–2025) | 3 | 2 | 0 | ||||||||||
| Grey Cup total (2014–2025) | 1 | 2 | 0 | ||||||||||