The East Cork Junior A Hurling Championship (known for sponsorship reasons as the East Cork Oil Junior A Hurling Championship) is an annual club hurling competition organised by the East Cork Board of the Gaelic Athletic Association and contested by the top-ranking junior clubs in East Cork, Ireland, deciding the competition winners through a group stage and knockout format. It is the most prestigious competition in East Cork hurling.
Introduced in 1925 as the East Cork Junior Championship, it was initially a straight knockout tournament. The competition went through a number of format changes since then, including the introduction of a back-door or second chance for beaten teams. The competition has since added a round-robin group stage.
In its current format, the East Cork Junior A Championship begins with a group stage in late summer. The eight participating teams are divided into two groups of four and play each other in a round-robin system. The two top-ranking teams in each group proceed to the knockout phase that culminates with the final. The winner of the East Cork Junior A Championship, as well as receiving the Jamesy Kelleher Cup, also qualifies for the subsequent Cork Junior A Hurling Championship.
The competition has been won by 22 teams, 18 of which have won it more than once. Castlemartyr are the most successful team in the tournament's history, having won it 11 times. Cobh are the title holders, having beaten Bride Rovers by 3âÂÂ19 to 3âÂÂ11 in the 2025 final.
The eight teams are divided into two groups of four. Over the course of the group stage, each team plays once against the others in the group, resulting in each team being guaranteed at least three games. Two points are awarded for a win, one for a draw and zero for a loss. The teams are ranked in the group stage table by points gained, then scoring difference and then their head-to-head record. The top two teams in each group qualify for the knockout stage.
Quarter-finals: Two lone quarter-finals featuring the second and third-placed teams from both groups contest this round. Two teams qualify for the next round.
Semi-finals: The two quarter-final winners and the two highest-placed qualifying teams from the group stage contest this round. The two winners from these games advance to the final.
Final: The two semi-final winners contest the final. The winning team are declared champions.
The two bottom-placed teams from the group stage take part in a playoff, with the losing team being relegated to the East Cork Junior B Hurling Championship for the following season.
The 8 teams competing in the 2025 East Cork Junior A Hurling Championship were: