Leinster Senior League Cup (cricket)

The Leinster Senior League Cup is the most important provincial cricket knock-out cup of the Leinster jurisdiction in Ireland. The competition began as the Leinster Senior Cup in 1919 and was renamed in 2019.

Traditionally a knock-out competition, from 2019 it has been played in a group format, with the winners and runners-up of two groups qualifying for semi-finals. In 2021, it was played as a T20 competition.