| Year: | 2020 |
| League: | NRL |
| League Rank: | 13 |
| League Wins: | 7 |
| League Draws: | 0 |
| League Losses: | 13 |
| Points For: | 375 |
| Points Against: | 509 |
| Ceo Title: | CEO |
| Ceo: |  Stephen Humphreys |
| Coach: | Des Hasler |
| Assistant Coach: | John Cartwright |
| Captain: | Daly Cherry-Evans |
| Avg Attendance: | 3,414 (Not including home matches away from Brookvale) |
| High Attendance: | 10,315 (vs MEL, round 1, Not including home matches away from Brookvale) |
| Top Tries: |  Jorge Taufua (7) |
| Top Goals: | Reuben Garrick (41) |
| Top Points: | Reuben Garrick (98) |
| Prev Season: | 2019 |
| Next Season: | 2021 |
| Team Colour: | Maroon |
| Font Colour: | White |
The 2020 Manly-Warringah Sea Eagles season was the 71st in the club's history since their entry into the then New South Wales Rugby Football League premiership in 1947. After twenty rounds, the team finished 13th on the NRL Ladder.
Due to the COVID-19 pandemic, NRL matches were halted after the second round. The Sea Eagles were originally meant to play the New Zealand Warriors and Canberra Raiders in Rounds Three and Four, but the NRL announced an updated draw for those rounds on 15 May that gave the Sea Eagles fixtures against the Canterbury-Bankstown Bulldogs and the Parramatta Eels in those rounds.[1]
The Sea Eagles played home games at Central Coast Stadium until the end of round seven where they then returned back to Brookvale.[2]
| Player | 2019 Club | 2020 Club | Ref | ||
|---|---|---|---|---|---|
| data-sort-value="Levi, Danny" | Danny Levi | Newcastle Knights | Manly-Warringah Sea Eagles | [3] | |
| data-sort-value="Harper, Morgan" | Morgan Harper | Canterbury-Bankstown Bulldogs | Manly-Warringah Sea Eagles | [4] |
| Player | 2019 Club | 2020 Club | Ref | ||
|---|---|---|---|---|---|
| data-sort-value="Elgey, Kane" | Kane Elgey | Manly-Warringah Sea Eagles | Retirement | [5] | |
| data-sort-value="Hodkinson, Trent" | Trent Hodkinson | Manly-Warringah Sea Eagles | Retirement | [6] | |
| data-sort-value="Koroisau, Apisai" | Apisai Koroisau | Manly-Warringah Sea Eagles | Penrith Panthers | [7] | |
| data-sort-value="Perrett, Lloyd" | Lloyd Perrett | Manly-Warringah Sea Eagles | Wynnum-Manly Seagulls (Intrust Super Cup) | [8] | |
| data-sort-value="Tanginoa, Kelepi" | Kelepi Tanginoa | Manly-Warringah Sea Eagles | Super League: Wakefield Trinity | [9] |
Note: Games and (sub) show total games played, e.g. 1 (1) is 2 games played.
| Player | Games (sub) | Tries | Goals | FG | Points | |
|---|---|---|---|---|---|---|
| 2 (5) | ||||||
| Daly Cherry-Evans (c) | 20 | 6 | 12 | 1 | 49 | |
| 4 (16) | 1 | 4 | ||||
| 8 (2) | 3 | 12 | ||||
| 14 (1) | 3 | 12 | ||||
| 14 (1) | 3 | 12 | ||||
| 12 | 5 | 20 | ||||
| 17 | 4 | 41 | 98 | |||
| 3 (10) | 6 | 24 | ||||
| 4 | 3 | 12 | ||||
| 4 (1) | ||||||
| 2 (17) | ||||||
| 20 | 2 | 8 | ||||
| 2 (1) | 2 | 8 | ||||
| 1 (4) | 1 | 4 | ||||
| 19 | 4 | 16 | ||||
| 5 (13) | 3 | 12 | ||||
| 1 | ||||||
| 18 | 3 | 12 | ||||
| 13 | 2 | 8 | ||||
| 14 | 7 | 28 | ||||
| 16 (2) | 2 | 8 | ||||
| 14 | 2 | 8 | ||||
| Jake Trbojevic (vc) | 20 | 2 | 8 | |||
| 7 | 4 | 16 | ||||
| 5 (8) | 1 | 8 | ||||
| 7 | 1 | 4 | ||||
| TOTAL | 20 | 67 | 53 | 1 | 375 |