The 1891 Limerick Senior Hurling Championship was the fifth staging of the Limerick Senior Hurling Championship since its establishment by the Limerick County Board in 1887.
South Liberties were the defending champions.
Treaty Stones won the championship after a 2âÂÂ01 to 0âÂÂ01 defeat of South Liberties in the final. It was their first championship title.