The 1991 Tipperary Senior Hurling Championship was the 101st staging of the Tipperary Senior Hurling Championship since its establishment by the Tipperary County Board in 1887. The championship began on 13 October 1991 and ended on 10 November 1991.
Holycross-Ballycahill were the defending champions.
On 10 November 1991, Cashel King Cormacs won the title after a 2âÂÂ08 to 1âÂÂ05 defeat of Holycross-Ballycahill in the final at Semple Stadium. It remains their only championship title.