1986 Cork Junior A Hurling Championship
The 1986 Cork Junior A Hurling Championship was the 89th staging of the Cork Junior A Hurling Championship since its establishment by the Cork County Board. The championship ran from 14 September to 26 October 1986.
The final was played on 26 October 1986 at the Aghabullogue Grounds in Coachford, between Ballymartle and Meelin, in what was their first ever meeting in the final. Ballymartle won the match by 3-08 to 2-04 to claim their third championship title overall and a first title in 28 years.
Delany Rovers's George Healy was the championship's top scorer with 2-14.
Qualification
Championship statistics
Top scorers
;Overall| Rank | Player | County | Tally | Total | Matches | Average |
| 1 | George Healy | Delany Rovers | 2-14 | 20 | 3 | 6.66 |
| 2 | Martin Fitzpatrick | Ballymartle | 0-17 | 17 | 3 | 5.66 |
| 3 | Seánie Noonan | Aghabullogue | 0-13 | 13 | 2 | 6.50 |
| 4 | Kevin McCarthy | Ballymartle | 2-06 | 12 | 3 | 4.00 |
| 5 | Derry Madden | Barryroe | 2-05 | 11 | 3 | 3.66 |
;In a single game
| Rank | Player | Club | Tally | Total | Opposition |
| 1 | Seánie Noonan | Aghabullogue | 0-09 | 9 | Delany Rovers |
| 2 | George Healy | Delany Rovers | 1-05 | 8 | Aghabullogue |
| 2 | Martin Fitzpatrick | Ballymartle | 0-08 | 8 | Cloyne |
| 4 | George Healy | Delany Rovers | 1-04 | 7 | Aghabullogue |
| 5 | Derry Madden | Barryroe | 1-02 | 5 | Rathluirc |
| 5 | Pat O'Connor | Meelin | 1-02 | 5 | Delany Rovers |
| 5 | Kevin McCarthy | Ballymartle | 1-02 | 5 | Meelin |
| 5 | Kevin O'Shea | Rathluirc | 0-05 | 5 | Barryroe |
| 5 | Joe Lewis | Cloyne | 0-05 | 5 | Ballymartle |
| 5 | Neil Tobin | Barryroe | 0-05 | 5 | Rathluirc |
| 5 | Batt Whelton | Barryroe | 0-05 | 5 | Rathluirc |
| 5 | George Healy | Delany Rovers | 0-05 | 5 | Meelin |
| 5 | Martin Fitzpatrick | Ballymartle | 0-05 | 5 | Barryroe |