Tommaso Bernetti (29 December 1779 - 21 March 1852) was an Italian Roman Catholic prelate and cardinal who served in the Secretariat of State and the Roman Curia during his time in the cardinalate.
He came from Fermo and was named a cardinal in 1826 before beginning his work in the Curia.
He had worked prior to his time in the cardinalate as a papal legate and governor with a dispensation for not having been a priest at that point.