Irish National Championships - Dublin - April 5 1991
Finals
| 1991-04-05 | 48kg | Pat Cosgrove | --- | WO. |
| 1991-04-05 | 51kg | Paul Buttimer | Pat O'Halloran | ??? |
| 1991-04-05 | 54kg | Joseph Lawlor | Wayne McCullough | WO. |
| 1991-04-05 | 57kg | Paul Griffin | Roy Nash | ??? |
| 1991-04-05 | 60kg | Paul Ireland | Seamus McCann | ??? |
| 1991-04-05 | 63,5kg | Neil Gough | Brian Geraghty | ??? |
| 1991-04-05 | 67kg | Billy Walsh | Eddie Fisher | WO. |
| 1991-04-05 | 71kg | Joe Lowe | Gordon Joyce | 3:2 |
| 1991-04-05 | 75kg | Denis Galvin | Christopher Cullen | ??? |
| 1991-04-05 | 81kg | Mark Delaney | Ger Lawlor | ??? |
| 1991-04-05 | 91kg | Raymond Kane | Peter Forde | ??? |
| 1991-04-05 | +91kg | Paul Douglas | Sean Murphy | ??? |