The 1990 O'Byrne Cup was a Gaelic football competition contested by the county teams of Leinster GAA.
The tournament format was straight knockout, with 11 participating teams. Dublin did not enter the competition. First-round byes were awarded to Laois, Louth, Meath, Longford and Kildare.
Louth won the competition after defeating Kildare in the final, held at the Drogheda Gaelic Grounds.
Results
Final
GK1 Gerry Farrell (Cooley Kickhams) (c)RCB2 David Reilly (Stabannon Parnells)FB3 Martin Morgan (Naomh Máirtín)LCB4 Brendan Kerin (St Mary's)RHB5 Pat Butterly (Stabannon Parnells)CHB6 Stephen Melia (John Mitchels)LHB7 Peter Fitzpatrick (Clan na Gael)MF8 Gerry Curran (Clan na Gael)MF9 Michael Fegan (Kilkerley Emmets)RHF10 Séamus O'Hanlon (Clan na Gael)CHF11 Michael Malone (St Mary's)LHF12 Cathal O'Hanlon (Clan na Gael)RCF13 Stefan White (Castleblayney Faughs)FF14 John Fox (St Joseph's)LCF15 Colin Kelly (Newtown Blues)Substitutes: 16 John Osborne (Naomh Fionnbarra) for Fegan GK1 Seán Sergeant (Eadestown)RCB2 Davy Dalton (Kilcock)FB3 David Malone (Raheens)LCB4 P.J. Doran (Johnstownbridge)RHB5 Seán Ryan (St Laurence's)CHB6 Peter McConnon (Round Towers)LHB7 Séamus Dowling (Moorefield)MF8 Brian Donovan (Celbridge)MF9 Seán McGovern (Athy)RHF10 Joe O'Donoghue (Johnstownbridge)CHF11 Paddy O'Donoghue (Johnstownbridge) (c)LHF12 David Fennin (Castlemitchell)RCF13 Declan Kerrigan (Johnstownbridge)FF14 John Crofton (Sarsfields)LCF15 Liam Miley (St Laurence's)Substitutes: 16 Martin Lynch (Clane) for Kerrigan 17 Clifford Barry (Monasterevan) for Donovan 18 Mick Nevin (Maynooth) for Miley
References