Giovanni Fabrizio Sanseverino was a Roman Catholic prelate who served as Bishop of Trivento (1568 â ?) and Bishop of Acerra (1560 â 1568).
On 13 March 1560, Giovanni Fabrizio Sanseverino was appointed during the papacy of Pope Pius IV as Bishop of Acerra. In 1568, Giovanni Fabrizio Sanseverino was appointed during the papacy of Pope Pius V as Bishop of Trivento. It is uncertain how long he served as Bishop of Trivento; the next bishop of record was Giulio Cesare Mariconda appointed in 1582.