This is a complete list of seasons competed by the Calgary Stampeders , a Canadian Football League team. The team was founded in 1945. Throughout their history, the Stampeders have won eight Grey Cups.
| Grey Cup Championships † | West Division Championships * | Regular season championships ^ |
| League season | Club season | League | Division | Finish | Wins | Losses | Ties | Playoffs |
|---|---|---|---|---|---|---|---|---|
| Calgary Stampeders | ||||||||
| 1945 | 1945 | WIFU | – | No season play | Won W.I.F.U. Semi-Finals (Roughriders) 2–0 series Lost W.I.F.U. Final (Blue Bombers) 9–6 | |||
| 1946 | 1946 | WIFU | – | 1st^ | 5 | 3 | 0 | Lost W.I.F.U. Finals (Blue Bombers) 1–1 series |
| 1947 | 1947 | WIFU | – | 2nd | 4 | 4 | 0 | Lost W.I.F.U. Finals (Blue Bombers) 1–2 series |
| 1948 | 1948 | WIFU†* | – | 1st^ | 12 | 0 | 0 | Won W.I.F.U. Finals (Roughriders) 1–0–1 series Won Grey Cup (Rough Riders) 12–7 |
| 1949 | 1949 | WIFU* | – | 1st^ | 13 | 1 | 0 | Won W.I.F.U. Finals (Roughriders) 1–1 series Lost Grey Cup (Alouettes) 28–15 |
| 1950 | 1950 | WIFU | – | 4th | 4 | 10 | 0 | |
| 1951 | 1951 | WIFU | – | 4th | 4 | 10 | 0 | |
| 1952 | 1952 | WIFU | – | 3rd | 7 | 9 | 0 | Lost W.I.F.U. Semi-Finals (Eskimos) 1–1 series |
| 1953 | 1953 | WIFU | – | 4th | 3 | 12 | 1 | |
| 1954 | 1954 | WIFU | – | 4th | 8 | 8 | 0 | |
| 1955 | 1955 | WIFU | – | 5th | 4 | 12 | 0 | |
| 1956 | 1956 | WIFU | – | 5th | 4 | 12 | 0 | |
| 1957 | 1957 | WIFU | – | 3rd | 6 | 10 | 0 | Lost W.I.F.U. Semi-Finals (Blue Bombers) 0–1–1 series |
| 1958 | 1958 | CFL | W.I.F.U. | 4th | 6 | 9 | 1 | |
| 1959 | 1959 | CFL | W.I.F.U. | 4th | 8 | 8 | 0 | |
| 1960 | 1960 | CFL | W.I.F.U. | 3rd | 6 | 8 | 2 | Lost West Semi-Finals (Eskimos) 0–2 series |
| 1961 | 1961 | CFL | West | 3rd | 7 | 9 | 0 | Won West Semi-Finals (Eskimos) 1–1 series Lost West Finals (Blue Bombers) 0–2 series |
| 1962 | 1962 | CFL | West | 2nd | 9 | 6 | 1 | Won West Semi-Finals (Roughriders) 2–0 series Lost West Finals (Blue Bombers) 1–2 series |
| 1963 | 1963 | CFL | West | 2nd | 10 | 4 | 2 | Lost West Finals (Roughriders) 1–1 series |
| 1964 | 1964 | CFL | West | 2nd | 12 | 4 | 0 | Won West Semi-Finals (Roughriders) 1–1 series Lost West Finals (Lions) 1–2 series |
| 1965 | 1965 | CFL | West | 1st^ | 12 | 4 | 0 | Lost West Finals (Blue Bombers) 1–2 series |
| 1966 | 1966 | CFL | West | 4th | 6 | 9 | 1 | |
| 1967 | 1967 | CFL | West | 1st^ | 12 | 4 | 0 | Lost West Finals (Roughriders) 1–2 series |
| 1968 | 1968 | CFL | West* | 2nd | 10 | 6 | 0 | Won West Semi-Final (Eskimos) 29–13 Won West Finals (Roughriders) 2–0 series Lost Grey Cup (Rough Riders) 24–21 |
| 1969 | 1969 | CFL | West | 2nd | 9 | 7 | 0 | Won West Semi-Final (Lions) 35–21 Lost West Finals (Roughriders) 0–2 series |
| 1970 | 1970 | CFL | West* | 3rd | 9 | 7 | 0 | Won West Semi-Final (Eskimos) 16–9 Won West Finals (Roughriders) 2–1 series Lost Grey Cup (Alouettes) 23–10 |
| 1971 | 1971 | CFL† | West* | 1st^ | 9 | 6 | 1 | Won West Finals (Roughriders) 2–0 series Won Grey Cup (Argonauts) 14–11 |
| 1972 | 1972 | CFL | West | 4th | 6 | 10 | 0 | |
| 1973 | 1973 | CFL | West | 4th | 6 | 10 | 0 | |
| 1974 | 1974 | CFL | West | 5th | 6 | 10 | 0 | |
| 1975 | 1975 | CFL | West | 4th | 6 | 10 | 0 | |
| 1976 | 1976 | CFL | West | 5th | 2 | 12 | 2 | |
| 1977 | 1977 | CFL | West | 5th | 4 | 12 | 0 | |
| 1978 | 1978 | CFL | West | 2nd | 9 | 4 | 3 | Won West Semi-Final (Blue Bombers) 38–4 Lost West Final (Eskimos) 26–13 |
| 1979 | 1979 | CFL | West | 2nd | 12 | 4 | 0 | Won West Semi-Final (Lions) 37–2 Lost West Finals (Eskimos) 19–7 |
| 1980 | 1980 | CFL | West | 3rd | 9 | 7 | 0 | Lost West Semi-Final (Blue Bombers) 32–14 |
| 1981 | 1981 | CFL | West | 5th | 6 | 10 | 0 | |
| 1982 | 1982 | CFL | West | 3rd | 9 | 6 | 1 | Lost West Semi-Final (Blue Bombers) 24–3 |
| 1983 | 1983 | CFL | West | 4th | 8 | 8 | 0 | |
| 1984 | 1984 | CFL | West | 5th | 6 | 10 | 0 | |
| 1985 | 1985 | CFL | West | 5th | 3 | 13 | 0 | |
| 1986 | 1986 | CFL | West | 4th | 11 | 7 | 0 | Lost West Semi-Final (Eskimos) 27–18 |
| 1987 | 1987 | CFL | West | 3rd | 10 | 8 | 0 | Lost West Semi-Final (Eskimos) 30–16 |
| 1988 | 1988 | CFL | West | 4th | 6 | 12 | 0 | |
| 1989 | 1989 | CFL | West | 2nd | 10 | 8 | 0 | Lost West Semi-Final (Roughriders) 33–26 |
| 1990 | 1990 | CFL | West | 1st^ | 11 | 6 | 1 | Lost West Final (Eskimos) 43–23 |
| 1991 | 1991 | CFL | West* | 2nd | 11 | 7 | 0 | Won West Semi-Final (Lions) 43–41 Won West Final (Eskimos) 38–36 Lost Grey Cup (Argonauts) 36–21 |
| 1992 | 1992 | CFL† | West* | 1st^ | 13 | 5 | 0 | Won West Final (Eskimos) 23–22 Won Grey Cup (Blue Bombers) 24–10 |
| 1993 | 1993 | CFL | West | 1st^ | 15 | 3 | 0 | Won West Semi-Final (Lions) 17–9 Lost West Final (Eskimos) 29–15 |
| 1994 | 1994 | CFL | West | 1st^ | 15 | 3 | 0 | Won West Semi-Final (Roughriders) 36–3 Lost West Final (Lions) 37–36 |
| 1995 | 1995 | CFL | North* | 1st^ | 15 | 3 | 0 | Won North Semi-Final (Tiger-Cats) 31–13 Won North Final (Eskimos) 37–4 Lost Grey Cup (Stallions) 37–20 |
| 1996 | 1996 | CFL | West | 1st^ | 13 | 5 | 0 | Lost West Final (Eskimos) 15–12 |
| 1997 | 1997 | CFL | West | 2nd | 10 | 8 | 0 | Lost West Semi-Final (Roughriders) 33–30 |
| 1998 | 1998 | CFL† | West* | 1st^ | 12 | 6 | 0 | Won West Final (Eskimos) 33–10 Won Grey Cup (Tiger-Cats) 26–24 |
| 1999 | 1999 | CFL | West* | 2nd | 12 | 6 | 0 | Won West Semi-Final (Eskimos) 30–17 Won West Final (Lions) 26–24 Lost Grey Cup (Tiger-Cats) 32–21 |
| 2000 | 2000 | CFL | West | 1st^ | 12 | 5 | 1 | Lost West Final (Lions) 37–23 |
| 2001 | 2001 | CFL† | West* | 2nd | 8 | 10 | 0 | Won West Semi-Final (Lions) 28–19 Won West Final (Eskimos) 34–16 Won Grey Cup (Blue Bombers) 27–19 |
| 2002 | 2002 | CFL | West | 5th | 6 | 12 | 0 | |
| 2003 | 2003 | CFL | West | 5th | 5 | 13 | 0 | |
| 2004 | 2004 | CFL | West | 5th | 4 | 14 | 0 | |
| 2005 | 2005 | CFL | West | 2nd | 11 | 7 | 0 | Lost West Semi-Final (Eskimos) 33–26 |
| 2006 | 2006 | CFL | West | 2nd | 10 | 8 | 0 | Lost West Semi-Final (Roughriders) 30–21 |
| 2007 | 2007 | CFL | West | 3rd | 7 | 10 | 1 | Lost West Semi-Final (Roughriders) 26–24 |
| 2008 | 2008 | CFL† | West* | 1st^ | 13 | 5 | 0 | Won West Final (Lions) 22–18 Won Grey Cup (Alouettes) 22–14 |
| 2009 | 2009 | CFL | West | 2nd | 10 | 7 | 1 | Won West Semi-Final (Eskimos) 24–21 Lost West Final (Roughriders) 27–17 |
| 2010 | 2010 | CFL | West | 1st^ | 13 | 5 | 0 | Lost West Final (Roughriders) 20–16 |
| 2011 | 2011 | CFL | West | 3rd | 11 | 7 | 0 | Lost West Semi-Final (Eskimos) 33–19 |
| 2012 | 2012 | CFL | West* | 2nd | 12 | 6 | 0 | Won West Semi-Final (Roughriders) 36–30 Won West Final (Lions) 34–29 Lost Grey Cup (Argonauts) 35–22 |
| 2013 | 2013 | CFL | West | 1st^ | 14 | 4 | 0 | Lost West Final (Roughriders) 35–13 |
| 2014 | 2014 | CFL† | West* | 1st^ | 15 | 3 | 0 | Won West Final (Eskimos) 43–18 Won Grey Cup (Tiger-Cats) 20–16 |
| 2015 | 2015 | CFL | West | 2nd | 14 | 4 | 0 | Won West Semi-Final (Lions) 35–9 Lost West Final (Eskimos) 45–31 |
| 2016 | 2016 | CFL | West* | 1st^ | 15 | 2 | 1 | Won West Final (Lions) 42–15 Lost Grey Cup (Redblacks) 39–33 |
| 2017 | 2017 | CFL | West* | 1st^ | 13 | 4 | 1 | Won West Final (Eskimos) 32–28 Lost Grey Cup (Argonauts) 27–24 |
| 2018 | 2018 | CFL† | West* | 1st^ | 13 | 5 | 0 | Won West Final (Blue Bombers) 22–14 Won Grey Cup (Redblacks) 27–16 |
| 2019 | 2019 | CFL | West | 2nd | 12 | 6 | 0 | Lost West Semi-Final (Blue Bombers) 35–14 |
| 2020 | 2020 | CFL | West | Season cancelled due to the COVID-19 pandemic | ||||
| 2021 | 2021 | CFL | West | 3rd | 8 | 6 | 0 | Lost West Semi-Final (Roughriders) 33–30 |
| 2022 | 2022 | CFL | West | 3rd | 12 | 6 | 0 | Lost West Semi-Final (Lions) 30–16 |
| 2023 | 2023 | CFL | West | 3rd | 6 | 12 | 0 | Lost West Semi-Final (Lions) 41–30 |
| 2024 | 2024 | CFL | West | 5th | 5 | 12 | 1 | |
| 2025 | 2025 | CFL | West | 3rd | 11 | 7 | 0 | West Semi-Final (Lions) |
| Regular season Totals (1945–2025) | 715 | 575 | 22 | |||||
| Playoff Totals (1945–2024) | 48 | 50 | 2 | |||||
| Grey Cup Totals (1945–2024) | 8 | 9 | ||||||