The Bob Kerr Irish Senior Cup, known for sponsorship reasons as the Bulters Bob Kerr Irish Senior Cup is a 50-over cricket competition for Irish amateur clubs. It is the most important knock-out cricket club competition in Ireland, is organised by Cricket Ireland and comprises the top teams from each of Ireland's four active provincial unions (Leinster, Munster, NCU and North West). Connacht Cricket Union, the youngest, smallest and weakest provincial union, do not enter teams in their own right, but County Galway CC enters as a member club in Munster.
It was sponsored initially by Schweppes and then Royal Liver, RSA, Clear Currency and the current sponsor is Butlers. It was renamed in honour of Bob Kerr, who died at the 2007 Cricket World Cup.
Matches are of 50-overs duration, though this may be reduced to as few as ten overs per side where delays or interruptions necessitate.
Each team must contain not less than nine players fully eligible to play for Ireland in all competitions.
Waringstown are the most successful club in the competition with 6 wins. Balbriggan Cricket Club are the defending champions, having defeated Clontarf by 12 run in the 2025 final.