Season by season
50 seasons, 1976–2025 · all-time 416–376–1 · 21 postseason appearances
| Season | Record | Finish | Postseason | Head coach |
|---|---|---|---|---|
| 2025 | 14–3 | 1stΔ WestΔ | Won Divisional playoffs (49ers) 41–6Won NFC Championship (Rams) 31–27Won Super Bowl LX (2) (vs. Patriots) 29–13 | Mike Macdonald |
| 2024 | 10–7 | 2nd West | — | Mike Macdonald |
| 2023 | 9–8 | 3rd West | — | Pete Carroll |
| 2022 | 9–8 | 2nd§ West | Lost Wild Card playoffs (at 49ers) 23–41 | Pete Carroll |
| 2021 | 7–10 | 4th West | — | Pete Carroll |
| 2020 | 12–4 | 1stΔ WestΔ | Lost Wild Card playoffs (Rams) 20–30 | Pete Carroll |
| Season | Record | Finish | Postseason | Head coach |
|---|---|---|---|---|
| 2019 | 11–5 | 2nd§ West | Won Wild Card playoffs (at Eagles) 17–9Lost Divisional playoffs (at Packers) 23–28 | Pete Carroll |
| 2018 | 10–6 | 2nd§ West | Lost Wild Card playoffs (at Cowboys) 22–24 | Pete Carroll |
| 2017 | 9–7 | 2nd West | — | Pete Carroll |
| 2016 | 10–5–1 | 1stΔ WestΔ | Won Wild Card playoffs (Lions) 26–6Lost Divisional playoffs (at Falcons) 20–36 | Pete Carroll |
| 2015 | 10–6 | 2nd§ West | Won Wild Card playoffs (at Vikings) 10–9Lost Divisional playoffs (at Panthers) 24–31 | Pete Carroll |
| 2014 | 12–4 | 1stΔ WestΔ | Won Divisional playoffs (Panthers) 31–17Won NFC Championship (Packers) 28–22 (OT)Lost Super Bowl XLIX (vs. Patriots) 24–28 | Pete Carroll |
| 2013 | 13–3 | 1stΔ WestΔ | Won Divisional playoffs (Saints) 23–15Won NFC Championship (49ers) 23–17Won Super Bowl XLVIII (1) (vs. Broncos) 43–8 | Pete Carroll |
| 2012 | 11–5 | 2nd§ West | Won Wild Card playoffs (at Redskins) 24–14Lost Divisional playoffs (at Falcons) 28–30 | Pete Carroll |
| 2011 | 7–9 | 3rd West | — | Pete Carroll |
| 2010 | 7–9 | 1stΔ WestΔ | Won Wild Card playoffs (Saints) 41–36Lost Divisional playoffs (at Bears) 24–35 | Pete Carroll |
| Season | Record | Finish | Postseason | Head coach |
|---|---|---|---|---|
| 2009 | 5–11 | 3rd West | — | Jim L. Mora |
| 2008 | 4–12 | 3rd West | — | Mike Holmgren |
| 2007 | 10–6 | 1stΔ WestΔ | Won Wild Card playoffs (Redskins) 35–14Lost Divisional playoffs (at Packers) 20–42 | Mike Holmgren |
| 2006 | 9–7 | 1stΔ WestΔ | Won Wild Card playoffs (Cowboys) 21–20Lost Divisional playoffs (at Bears) 24–27 (OT) | Mike Holmgren |
| 2005 | 13–3 | 1stΔ WestΔ | Won Divisional playoffs (Redskins) 20–10Won NFC Championship (Panthers) 34–14Lost Super Bowl XL (vs. Steelers) 10–21 | Mike Holmgren |
| 2004 | 9–7 | 1stΔ WestΔ | Lost Wild Card playoffs (Rams) 20–27 | Mike Holmgren |
| 2003 | 10–6 | 2nd§ West | Lost Wild Card playoffs (at Packers) 27–33 (OT) | Mike Holmgren |
| 2002 | 7–9 | 3rd West | — | Mike Holmgren |
| 2001 | 9–7 | 2nd West | — | Mike Holmgren |
| 2000 | 6–10 | 4th West | — | Mike Holmgren |
| Season | Record | Finish | Postseason | Head coach |
|---|---|---|---|---|
| 1999 | 9–7 | 1stΔ WestΔ | Lost Wild Card playoffs (Dolphins) 17–20 | Mike Holmgren |
| 1998 | 8–8 | 3rd West | — | Dennis Erickson |
| 1997 | 8–8 | 3rd West | — | Dennis Erickson |
| 1996 | 7–9 | 5th West | — | Dennis Erickson |
| 1995 | 8–8 | 3rd West | — | Dennis Erickson |
| 1994 | 6–10 | 5th West | — | Tom Flores |
| 1993 | 6–10 | 5th West | — | Tom Flores |
| 1992 | 2–14 | 5th West | — | Tom Flores |
| 1991 | 7–9 | 4th West | — | Chuck Knox |
| 1990 | 9–7 | 3rd West | — | Chuck Knox |
| Season | Record | Finish | Postseason | Head coach |
|---|---|---|---|---|
| 1989 | 7–9 | 4th West | — | Chuck Knox |
| 1988 | 9–7 | 1stΔ WestΔ | Lost Divisional playoffs (at Bengals) 13–21 | Chuck Knox |
| 1987 | 9–6 | 2nd§ West | Lost Wild Card playoffs (at Oilers) 20–23 (OT) | Chuck Knox |
| 1986 | 10–6 | 3rd West | — | Chuck Knox |
| 1985 | 8–8 | 3rd West | — | Chuck Knox |
| 1984 | 12–4 | 2nd§ West | Won Wild Card playoffs (Raiders) 13–7Lost Divisional playoffs (at Dolphins) 10–31 | Chuck Knox |
| 1983 | 9–7 | 2nd§ West | Won Wild Card playoffs (Broncos) 31–7Won Divisional playoffs (at Dolphins) 27–20Lost AFC Championship (at Raiders) 14–30 | Chuck Knox |
| 1982 | 4–5 | 10th None | — | Jack Patera (0–2)Mike McCormack (4–3) |
| 1981 | 6–10 | 5th West | — | Jack Patera |
| 1980 | 4–12 | 5th West | — | Jack Patera |
Source: Wikipedia (facts-only, Feist-clean); franchise season lists · built 2026-06-19 · from data/nfl/franchise-seasons-historical.json.