Mariano da Roccacasale (13 January 1778 – 31 May 1866) - born Domenico di Nicolantonio - was an Italian Roman Catholic professed religious from the Order of Friars Minor. He was of peasant stock and entered the order in his twenties as a professed religious rather than as an ordained priest. He was an influence in the decision of Giuseppe Oddi joining the Franciscans after their 1863 encounter.