Fulvio Tesorieri or Fulvio Thesauro (died 1616) was a Roman Catholic prelate who served as Bishop of Belcastro (1612âÂÂ1616).
On 3 December 1612, Fulvio Tesorieri was appointed during the papacy of Pope Paul V as Bishop of Belcastro. On 30 December 1612, he was consecrated bishop by Giovanni Garzia Mellini, Cardinal-Priest of Santi Quattro Coronati, with Decio Caracciolo Rosso, Archbishop of Bari-Canosa, and Giovanni Battista del Tufo, Bishop Emeritus of Acerra, serving as co-consecrators. He served as Bishop of Belcastro until his death in 1616.