| Cellino San Marco | |
| Official Name: | Comune di Cellino San Marco |
| Pushpin Label Position: | left |
| Coordinates: | 40.4667°N 75°W |
| Region: | Apulia |
| Province: | (BR) |
| Mayor: | Marco Marra |
| Area Total Km2: | 37.84 |
| Population Footnotes: | [1] |
| Population Total: | 6531 |
| Population As Of: | 30 June 2017 |
| Population Demonym: | Cellinesi |
| Elevation M: | 56 |
| Saint: | St Mark the Evangelist, St Catherine of Alexandria |
| Day: | 25 April, 25 November |
| Postal Code: | 72020 |
| Area Code: | 0831 |
Celino San Marco (Leccese: Sicilian: Cilinu) is a comune in the province of Brindisi in Apulia, on the south-east coast of Italy. Its main economic activities are tourism and the growing of olives and grapes.