2002–03 All-Ireland Senior Club Football Championship
The 2002–03 All-Ireland Senior Club Football Championship was the 33rd staging of the All-Ireland Senior Club Football Championship since its establishment by the Gaelic Athletic Association in 1970–71. The competition began on 27 October 2002 and concluded on 17 March 2003.
The defending champion was Ballinderry; however, the club lost to Errigal Ciarán in the [|Ulster Club SFC semi-final].
Nemo Rangers defeated Crossmolina Deel Rovers by 0–14 to 1–9 in the [|final] at Croke Park on 17 March 2003 to win the competition. It was the club's seventh title and a first since 1994.
Nemo's Colin Corkery was the competition's top scorer, finishing with 2–23.
Semi-finals
Finalists
Billy Morgan managed the winning team.- Don Heaphy
- Larry Kavanagh
- Niall Geary
- Seán O'Brien
- Gary Murphy
- Martin Cronin
- Mick Daly
- Kevin Cahill
- Derek Kavanagh
- Alan Cronin
- Steven O'Brien
- Maurice McCarthy
- Joe Kavanagh
- Colin Corkery
- William Morgan
| Crossmolina Deel Rovers – 2003 All-Ireland Senior Club Football Championship runners-up |
John Maughan managed the losing team.
- Barry Heffernan
- Stephen Rochford
- Tom Nallen
- Colm Reilly
- Peadár Gardiner
- Damien Mulligan
- Gerard O'Malley
- Gabriel Walsh
- James Nallen
- Michael Moyles
- Ciarán McDonald
- Enda Lavelle
- Liam Moffatt
- Joe Keane
- Paul McGuinness
Statistics
Top scorers
;Overall| Rank | Player | Club | Tally | Total | Matches | Average |
| 1 | Colin Corkery | Nemo Rangers | 2-23 | 29 | 5 | 5.80 |
| 2 | Ciarán McDonald | Crossmolina Deel Rovers | 0-27 | 27 | 5 | 5.40 |
| 3 | Peter Canavan | Errigal Ciarán | 1-17 | 20 | 5 | 4.00 |
| 4 | David Reid | Mattock Rangers | 1-15 | 18 | 5 | 3.60 |
| 5 | Muiris Gavin | Monaleen | 0-17 | 17 | 3 | 5.66 |
| 6 | Mark Harte | Errigal Ciarán | 1-13 | 16 | 5 | 3.20 |
| 6 | Christy Grimes | Mattock Rangers | 0-16 | 16 | 5 | 3.20 |
| 8 | John Hudson | Starlights | 1-12 | 15 | 2 | 7.50 |
| 8 | Tommy Gill | Rathnew | 1-12 | 15 | 4 | 3.75 |
| 10 | Paddy Murray | Moorelfield | 1-11 | 14 | 2 | 7.00 |
;In a single game
| Rank | Player | Club | Tally | Total | Opposition |
| 1 | John Hudson | Starlights | 1-07 | 10 | Mattock Rangers |
| 1 | Mark Harte | Errigal Ciarán | 1-07 | 10 | Crossmaglen Rangers |
| 3 | Colin Corkery | Nemo Rangers | 2-03 | 9 | Monaleen |
| 3 | Tommy Gill | Rathnew | 1-06 | 9 | UCD |
| 5 | Liam Moffatt | Crossmolina Deel Rovers | 2-02 | 8 | Allen Gaels |
| 5 | Paddy Murray | Moorefield | 1-05 | 8 | Mattock Rangers |
| 5 | Oisín McConville | Crossmaglen Rangers | 1-05 | 8 | Errigal Ciarán |
| 5 | Peter Canavan | Errigal Ciarán | 1-05 | 8 | Crossmaglen Rangers |
| 9 | David Reid | Mattock Rangers | 1-04 | 7 | Moorefield |
| 9 | Luke Dolan | Strokestown | 0-07 | 7 | Crossmolina Deel Rovers |
| 9 | Muiris Gavin | Monaleen | 0-07 | 7 | Stradbally |
| 9 | Gerald Pierson | Gowna | 0-07 | 7 | Enniskillen Gaels |
Miscellaneous
- The Donegal club champion did not contest the [|Ulster Club SFC] due to a series of disputes and a delay in the completion of the Donegal County Championship.
- Dunshaughlin won the [|Leinster Club SFC] for the first time in their history.
- Nemo Rangers became the first team to win three successive [|Munster Club SFC] titles.