The All-Ireland T20 Cup is the peak club cup competition in Ireland – bringing together the best T20 teams in club cricket across the provinces. The (men’s) Cup began in 2017, and features the winner of each Provincial Unions’ T20 club competition playing off for the annual title. The (women’s) Cup began in 2021, and features a preliminary final between the winner of the NCU’s and NWCU’s T20 club competition to play in the final against the winner of Leinster’s T20 club competition.

The official competition hashtag is: #AIT20