| Type: | Bishop |
| Honorific-Prefix: | Most Reverend |
| Costanzo Fondulo | |
| Bishop of Cremona | |
| Church: | Catholic Church |
| Diocese: | Diocese of Cremona |
| Term: | 1412–1423 |
| Consecration: | 1412 |
| Consecrated By: | Giacomo Balardi Arrigoni |
| Death Date: | 1423 |
Costanzo Fondulo (died 1423) was a Roman Catholic prelate who served as Bishop of Cremona (1412–1423).[1]
On 28 March 1412, Costanzo Fondulo was appointed Bishop of Cremona by Pope Gregory XII.[2] In 1412, he was consecrated bishop by Giacomo Balardi Arrigoni, Bishop of Lodi, with Alessio di Siregno, Bishop of Piacenza, and Pietro Grassi, Bishop of Pavia, serving as co-consecrators. He served as Bishop of Cremona until his death in 1423.
. Hierarchia catholica medii et recentioris aevi . Konrad Eubel. II. 139. 1914. Libreria Regensbergiana. Münster. second. (in Latin)