| Type: | Bishop |
| Honorific-Prefix: | Most Reverend |
| Fulvio Tesorieri | |
| Bishop of Belcastro | |
| Church: | Catholic Church |
| Diocese: | Diocese of Belcastro |
| Term: | 1612–1616 |
| Predecessor: | Gregorio de Sanctis |
| Successor: | Girolamo Ricciulli |
| Consecration: | 30 December 1612 |
| Consecrated By: | Giovanni Garzia Mellini |
| Death Date: | 1616 |
| Death Place: | Belcastro, Italy |
Fulvio Tesorieri or Fulvio Thesauro (died 1616) was a Roman Catholic prelate who served as Bishop of Belcastro (1612–1616).[1]
On 3 December 1612, Fulvio Tesorieri was appointed during the papacy of Pope Paul V as Bishop of Belcastro.[2] 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.