The Denis O'Riordan Cup is an annual hurling competition organised by the Cork County Board of the Gaelic Athletic Association and contested by divisional and university sides in the county of Cork in Ireland, deciding the competition winners through a group stage and knockout format.

[2][3][4] From 2020, the participating divisions and colleges held their own series of games, designed to produce one team to advance to the quarter-final stages of the championship proper.

In 2022, it was decided to award the Denis O'Riordan Cup to the winning team.

The Denis O'Riordan Cup winners qualify for the quarter-final stage of the Cork Premier Senior Hurling Championship.

[5] Denis O'Riordan was the Valley Rovers delegate to the south-east board for 12 years before becoming treasurer.