John Cusack (1927 – 10 July 2020) was an Irish Gaelic footballer.
A farmer by trade, Cusack was regarded as a versatile player who could line out in defence or attack.
Cusack was selected for the senior team for the 1949 All-Ireland competition, in which he claimed his first Ulster Senior Football Championship medal before losing the 1949 All-Ireland final to Meath.
Club success followed, when Cusack's Lavey club made history by winning Cavan Junior and Cavan Senior Championships in the same calendar year in 1951.
He won a second Ulster Championship medal with Cavan in the 1952 All-Ireland Senior Football Championship, before winning an All-Ireland medal after a replay win over Meath.