| Dionisio Carreras | |
| Nationality: | Spanish |
| Sport: | Long-distance running |
| Event: | Marathon |
| Club: | Zaragoza Foot-Ball Club, Zaragoza Club Deportivo |
| Birth Date: | 9 October 1890 |
| Birth Place: | Codo, Spain |
| Death Place: | Codo, Spain |
Dionisio Carreras (9 October 1890 - 16 July 1949) was a Spanish long-distance runner.[1] He competed in the marathon at the 1924 Summer Olympics.[2]