1966 Cork Senior Hurling Championship
The 1966 Cork Senior Hurling Championship was the 78th staging of the Cork Senior Hurling Championship since its establishment by the Cork County Board in 1887. The draw for the first round fixtures took place at the County Convention on 30 January 1966. The championship began on 3 April 1966 and ended on 9 October 1966.
St. Finbarr's were the defending champions, however, they were defeated by University College Cork at the semi-final stage.
On 9 October 1966, Avondhu won the championship following a 2-11 to 4-04 defeat of University College Cork in the final. This was their second championship title overall and their first in 14 championship seasons.
University College Cork's Seánie Barry was the championship's top scorer with 1-23.From Championship
Regraded to the Cork Intermediate Hurling Championship
First round
Quarter-finals
Semi-finals
FinalChampionship statistics
Top scorers
;Top scorer overall
| Rank | Player | Club | Tally | Total | Matches | Average |
| 1 | Seánie Barry | UCC | 1-23 | 26 | 4 | 6.50 |
| 2 | Liam Sheehan | Avondhu | 1-15 | 18 | 4 | 4.50 |
| 3 | Noel O'Regan | Avondhu | 5-02 | 17 | 4 | 4.25 |
| 4 | Jack Buckley | Na Piarsaigh | 4-03 | 15 | 2 | 7.50 |
| 4 | Richard Browne | Avondhu | 4-03 | 15 | 4 | 3.75 |
| 4 | John O'Halloran | UCC | 3-06 | 15 | 4 | 3.75 |
| 5 | Justin McCarthy | Passage | 2-08 | 14 | 2 | 7.00 |
| 5 | Charlie McCarthy | Passage | 1-11 | 14 | 3 | 4.66 |
| 6 | Christy Ring | Glen Rovers | 3-03 | 12 | 2 | 6.00 |
| 6 | J. McCarthy | UCC | 3-03 | 12 | 3 | 4.00 |
;Top scorers in a single game
| Rank | Player | Club | Tally | Total | Opposition |
| 1 | Jack Buckley | Na Piarsaigh | 4-02 | 14 | Carbery |
| 2 | Noel O'Regan | Avondhu | 4-01 | 13 | Muskerry |
| 3 | J. McCarthy | UCC | 3-02 | 11 | St. Vincent's |
| 4 | Tom Corbett | Glen Rovers | 3-01 | 10 | Carrigdhoun |
| 5 | Christy Ring | Glen Rovers | 2-03 | 9 | Carrigdhoun |
| 5 | Séamus Gillen | Na Piarsaigh | 1-06 | 9 | UCC |
| 5 | Seánie Barry | UCC | 0-09 | 9 | St. Finbarr's |
| 6 | Denis Hurley | Sarsfields | 2-02 | 8 | Avondhu |
| 6 | John O'Halloran | UCC | 2-02 | 8 | St. Vincent's |
| 6 | Mick Archer | St. Finbarr's | 2-02 | 8 | Glen Rovers |
| 6 | Justin McCarthy | Passage | 1-05 | 8 | Seandún |
| 6 | Seánie Barry | UCC | 0-08 | 8 | Na Piarsaigh |
