Mariano Tullio Troia (Italian pronunciation: [ma'rja?no 'tulljo 'tr??ja]; Palermo, September 3, 1933 – Viterbo, March 27, 2010) was a member of the Sicilian Mafia.
He was on the "most wanted list" of the Italian ministry of the Interior since 1992 until his arrest in Palermo in September 1998.