The Dublin Senior Hurling Championship (Irish: Craobh Sinsear Iomána Átha Cliath) is an annual hurling competition organised by the Dublin County Board of the Gaelic Athletic Association (GAA) since 1887 for the top hurling clubs in County Dublin, Ireland. Sixteen clubs compete. Initially the teams are divided into four groups of four with the group matches being played from April to May with a break to accommodate the All-Ireland Championship and resume during August or September. The group stage is followed by a knock-out phase which takes place during the months of October and November.