The 1998–99 All-Ireland Senior Club Football Championship was the 29th staging of the All-Ireland Senior Club Football Championship since its establishment by the Gaelic Athletic Association in 1970-71. The championship began on 4 October 1998 and ended on 17 March 1999.

Corofin entered the championship as the defending champions, however, they were beaten by Ballina Stephenites in the Ulster Club Championship.

On 17 March 1999, Crossmaglen Rangers won the championship following a 0-09 to 0-08 defeat of Ballina Stephenites in the All-Ireland final at Croke Park. It was their second championship title overall and their first title since 1997.

Crossmaglen's Oisín McConville was the championship's top scorer with 1-31.

Connacht

Quarter-finals

Semi-finals

Final

Leinster

First round

Quarter-finals

Semi-finals

Final

Munster

Quarter-finals

Semi-finals

Final

Ulster

Preliminary round

Quarter-finals

Semi-finals

Final

Quarter-final

Semi-finals

Final

Statistics Top scorers

Overall

Rank Player Club Tally Total Matches Average1Oisín McConvilleCrossmaglen Rangers1-313474.852Pádraic DavisFr Manning Gaels0-242446.003Ray CosgroveKilmacud Crokes2-131963.16Leo TurleyÉire Óg2-131972.714Anthony CunninghamCrossmaglen Rangers1-141772.42Gavin DiamondBellaghy0-171744.25Mick O'KeeffeKilmacud Crokes0-171762.835Enda McAtamneySt John's1-131635.336Martin McGrathBallina Staphenites0-151552.507Declan BrowneMoyle Rovers1-111434.66John McEnteeCrossmaglen Rangers1-111472.00

In a single game

Rank Player Club Tally Total Opposition1Oisín McConvilleCrossmaglen Rangers0-099Tír Chonaill Gaels2Cathal ScullionBellaghy2-028Castleblayney FaughsEnda McAtamneySt John's1-058Ardboe O'Donovan Rossa3Jonathan McCarthyUniversity of Limerick1-047St Saviour'sRay CosgroveKilmacud Crokes1-047StradballyMick O'KeeffeKilmacud Crokes0-077James StephensPádraic DavisFr Manning Gaels0-077ClaneTom BrewsterEnniskillen Gaels0-077Rostrevor

Miscellaneous

Doonbeg became the first team from Clare to win the Munster Club Championship. Ballina Stephenites won the Connacht Club Championship title for the first time in their history.

References