The 2011 Cork Senior Hurling Championship was the 123rd staging of the Cork Senior Hurling Championship since its establishment by the Cork County Board in 1887. The draw for the 2011 opening round fixtures took place on 11 December 2010. The championship proper began on 3 June 2011 and ended on 2 October 2011. Sarsfields were the defending champions, however, they were defeated by Newtownshandrum in the quarter-finals. On 20 August 2011, Ballinhassig were relegated from the championship following a 0-12 to 0-13 defeat by Bishopstown.