1991 Cork Junior A Hurling Championship
The 1991 Cork Junior A Hurling Championship was the 94th staging of the Cork Junior A Hurling Championship since its establishment by the Cork County Board. The draw for the opening fixtures took place on 16 December 1990. The championship ran from 8 September to 10 November 1991.
The final replay was played on 10 November 1991 at Páirc Uí Chaoimh in Cork between Aghabullogue and Aghada, in what was their first ever meeting in the final. Aghabullogue won the match by 1-13 to 1-09 to claim their first ever championship title.
Aghabullogue's Joe Healy was the championship's top scorer with 7-20.
Qualification
Results
Quarter-finals
Championship statistics
Top scorers
;Overall| Rank | Player | Club | Tally | Total | Matches | Average |
| 1 | Joe Healy | Aghabullogue | 7-20 | 41 | 4 | 10.25 |
| 2 | Richie Lewis | Aghada | 1-17 | 20 | 4 | 5.00 |
| 3 | Seán McCarthy | Ballinhassig | 0-15 | 15 | 2 | 7.50 |
| 4 | Pat Kenneally | Newcestown | 0-14 | 14 | 3 | 4.66 |
| 5 | Mickey Lewis | Aghada | 0-10 | 10 | 4 | 2.50 |
;In a single game
| Rank | Player | Club | Tally | Total | Opposition |
| 1 | Joe Healy | Aghabullogue | 3-05 | 14 | Nemo Rangers |
| 2 | Joe Healy | Aghabullogue | 1-08 | 11 | Aghada |
| 3 | Seán McCarthy | Ballinhassig | 0-10 | 10 | Newcestown |
| 4 | Richie Lewis | Aghada | 1-06 | 9 | Aghabullogue |
| 5 | Joe Healy | Aghabullogue | 2-02 | 8 | Newcestown |
| 5 | Joe Healy | Aghabullogue | 1-05 | 8 | Aghada |
| 7 | Eugene Desmond | Newcestown | 2-01 | 7 | Ballinhassig |
| 7 | John Murphy | Aghada | 2-01 | 7 | Kilworth |
| 7 | Ned Brosnan | Meelin | 0-07 | 7 | Aghada |
| 10 | Conor Counihan | Aghada | 2-00 | 6 | Meelin |
| 10 | Barry White | Newcestown | 2-00 | 6 | Ballinhassig |
| 10 | Paddy Martin | Aghabullogue | 1-03 | 6 | Nemo Rangers |
| 10 | Peter Brennan | Ballinhassig | 1-03 | 6 | Newcestown |
| 10 | Pat Kenneally | Newcestown | 0-06 | 6 | Ballinhassig |