| Type: | Bishop |
| Honorific-Prefix: | Most Reverend |
| Dionisio de Santos | |
| Bishop of Cartagena | |
| Church: | Catholic Church |
| Term: | 1574–1577 |
| Predecessor: | Pedro Arévalos |
| Successor: | Juan Montalvo |
| Consecration: | Dec 1575 |
| Consecrated By: | Luis Zapata de Cárdenas |
| Birth Place: | Spain |
| Death Date: | 9 Sep 1577 |
| Death Place: | Cartagena, Colombia |
Dionisio de Santos, O.P. (died 1577) was a Roman Catholic prelate who served as Bishop of Cartagena (1574–1577).[1]
Dionisio de Santos was born in Spain and ordained a priest in the Order of Preachers.[2] On 25 Jun 1574, he was appointed during the papacy of Pope Gregory XIII as Bishop of Cartagena.On Dec 1575, he was consecrated bishop by Luis Zapata de Cárdenas, Archbishop of Santafé en Nueva Granada. He served as Bishop of Cartagena until his death on 9 Sep 1577.