| 2021 Dublin Senior Football Championship | |
| County: | Dublin |
| Province: | Leinster |
| Year: | 2021 |
| Trophy: | Clerys Cup |
| Date: | 10 September 2021 - 21 November 2021 |
| Num Teams: | 16 Senior 1 16 Senior 2 |
| Defending Champions: | Ballymun Kickhams |
| Winners: | Kilmacud Crokes |
| Qualify For: | Leinster Club SFC |
| Runnersup: | St Jude's |
| Website: | Dublin GAA.ie |
| Previous: | 2020 |
| Next: | 2022 |
The 2021 Dublin Senior Football Championship was the 135th edition of Dublin GAA's premier gaelic football tournament for senior clubs in County Dublin, Ireland. 32 teams participate (16 in Senior 1 and 16 in Senior 2), with the winner of Senior 1 representing Dublin in the Leinster Senior Club Football Championship.
Kilmacud Crokes defeated St Jude's to win the Senior 1 Championship.[1]
St Pat's Donabate won the 2021 I.F.C. and were promoted along with I.F.C. finalists Round Towers Clondalkin to Senior 2.[2] They replaced St Peregrines and Fingal Ravens who were relegated to the 2022 I.F.C.[3]
Cuala won the Senior 2 Championship and were promoted along with finalists Templeogue Synge Street to Senior 1.[4] They replaced St Oliver Plunketts and St Vincents who were relegated to the 2022 SFC2.[5]
| Team | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Ballyboden St. Enda's | 3 | 2 | 1 | 0 | 47 | 34 | +13 | 5 | |
| Na Fianna | 3 | 2 | 0 | 1 | 52 | 40 | +12 | 4 | |
| Raheny | 3 | 1 | 1 | 1 | 49 | 50 | -1 | 3 | |
| Whitehall Colmcille | 3 | 0 | 0 | 3 | 35 | 59 | -24 | 0 |
Round 1
Round 2
Round 3
| Team | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Kilmacud Crokes | 3 | 3 | 0 | 0 | 68 | 34 | +34 | 6 | |
| Castleknock | 3 | 1 | 0 | 2 | 52 | 60 | -8 | 2 | |
| Ballinteer St John's | 3 | 1 | 0 | 2 | 43 | 62 | -19 | 2 | |
| St Vincents | 3 | 1 | 0 | 2 | 48 | 55 | -7 | 2 |
Round 1
Round 2
Round 3
| Team | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Ballymun Kickhams | 3 | 2 | 1 | 0 | 44 | 40 | +4 | 5 | |
| Thomas Davis | 3 | 2 | 0 | 1 | 46 | 34 | +12 | 4 | |
| Skerries Harps | 3 | 1 | 1 | 1 | 36 | 44 | -8 | 3 | |
| Clontarf | 3 | 0 | 0 | 3 | 28 | 36 | -8 | 0 |
Round 1
Round 2
Round 3
| Team | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lucan Sarsfields | 3 | 2 | 1 | 0 | 60 | 40 | +20 | 5 | |
| St Judes | 3 | 2 | 1 | 0 | 72 | 42 | +30 | 5 | |
| Round Towers Lusk | 3 | 1 | 0 | 2 | 46 | 63 | -17 | 2 | |
| St Oliver Plunketts | 3 | 0 | 0 | 3 | 46 | 79 | -33 | 0 |
Round 1
Round 2
Round 3
| Team | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| St Brigid's | 3 | 3 | 0 | 0 | 65 | 30 | +35 | 6 | |
| St Anne's | 3 | 2 | 0 | 1 | 56 | 46 | +10 | 4 | |
| Ballyboughal | 3 | 1 | 0 | 2 | 53 | 69 | -16 | 2 | |
| Trinity Gaels | 3 | 0 | 0 | 3 | 31 | 60 | -29 | 0 |
Round 1
Round 2
Round 3
| Team | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Cuala | 3 | 3 | 0 | 0 | 76 | 35 | +41 | 6 | |
| St Maurs | 3 | 2 | 0 | 1 | 66 | 41 | +25 | 4 | |
| Naomh Mearnóg | 3 | 1 | 0 | 2 | 41 | 57 | -16 | 2 | |
| St Peregrines | 3 | 0 | 0 | 3 | 15 | 65 | -50 | 0 |
Round 1
Round 2
Round 3
| Team | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Templeogue Synge Street | 3 | 2 | 0 | 1 | 46 | 42 | +4 | 4 | |
| St Sylvester's | 3 | 2 | 0 | 1 | 38 | 38 | +0 | 4 | |
| Erins Isle | 3 | 1 | 0 | 2 | 31 | 37 | -6 | 2 | |
| Fingallians | 3 | 1 | 0 | 2 | 40 | 38 | +2 | 2 |
Round 1
Round 2
Round 3
| Team | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Parnells | 3 | 3 | 0 | 0 | 43 | 39 | +4 | 6 | |
| St Mary's | 3 | 2 | 0 | 1 | 45 | 34 | +11 | 4 | |
| Naomh Ólaf | 3 | 1 | 0 | 2 | 42 | 41 | +1 | 2 | |
| Fingal Ravens | 3 | 0 | 0 | 3 | 40 | 56 | -16 | 0 |
Round 1
Round 2
Round 3