2012 Offaly Senior Hurling Championship

The 2012 Offaly Senior Hurling Championship was the 115th staging of the Offaly Senior Hurling Championship since its establishment by the Offaly County Board in 1896. The draw for the 2012 fixtures took place on 28 January 2012. The championship began on 11 May 2012 and ended on 7 October 2012.

Coolderry, the defending champions, were defeated in the quarter-final stages by St Rynagh's. Shamrocks were relegated from the championship. Kilcormac–Killoughey won the title following a 2–16 to 2–12 defeat of St Rynagh's in the final.