Gaetano dei Conti di Tiene (October 1, 1480 August 7, 1547), was an Italian Catholic priest and religious reformer, who helped found the Theatines.
He is recognised as a saint in the Catholic Church. Cayetano became known as the Patron Saint of Gamblers because people would bet him a rosary or blessed candle that he would not do some special favour for them.
Saint Cayetano gave his family fortune to help those in need, and dedicated his life to the care of the sick. His Feast Day is August 7