| Costa di Mezzate | |
| Official Name: | Comune di Costa di Mezzate |
| Coordinates: | 45.6667°N 57°W |
| Province: | (BG) |
| Area Total Km2: | 5 |
| Population Footnotes: | [1] |
| Population Total: | 3383 |
| Population As Of: | 2011 |
| Population Demonym: | Costesi |
| Elevation M: | 218 |
| Saint: | San Giorgio |
| Day: | 23 April |
| Postal Code: | 24060 |
| Area Code: | 035 |
| Istat: | 016084 |
Costa di Mezzate (Bergamasque: Còsta de Mesàt) is a comune in the province of Bergamo, in Lombardy, Italy. Neighbouring communes are Albano Sant'Alessandro, Bagnatica, Bolgare, Calcinate, Gorlago and Montello.