The 1928 Cork Senior Hurling Championship was the 40th staging of the Cork Senior Hurling Championship since its establishment by the Cork County Board in 1887. The draw for the opening round fixtures took place at the Cork Convention on 29 January 1928. The championship began on 25 March 1928 and ended on 21 October 1928.
The 5–02 to 2-05 first round defeat of St. Finbarr's by Collins was declared null and void after an objection by St. Finbarr's was upheld.
Mallow's defeat of Blackrock in the second round was regarded at the time as one of the biggest shocks in the history of the championship. It inspired the song When Mallow Beat Blackrock.