The 2020 Leinster Senior Hurling Championship is the 2020 installment of the annual Leinster Senior Hurling Championship organised by Leinster GAA. Wexford were the defending champions. Originally scheduled to be a round robin competition, due to the suspension caused by the impact of the COVID-19 pandemic on Gaelic games, the provincial competition was switched to a knockout format. The Rob Robin format to be rescheduled for 2022 season.