| Gamalero | |
| Official Name: | Comune di Gamalero |
| Coordinates: | 44.8167°N 40°W |
| Region: | Piedmont |
| Province: | Alessandria (AL) |
| Frazioni: | San Rocco |
| Mayor: | Nadia Taverna |
| Area Total Km2: | 12.2 |
| Population Total: | 804 |
| Population As Of: | 2005 |
| Population Demonym: | Gamaleresi |
| Elevation M: | 142 |
| Postal Code: | 15010 |
| Area Code: | 0131 |
Gamalero (Gamaleri in Piedmontese) is a comune (municipality) in the Province of Alessandria in the Italian region Piedmont, located about 70km (40miles) southeast of Turin and about 13km (08miles) southwest of Alessandria.
Gamalero borders the following municipalities: Carentino, Cassine, Castellazzo Bormida, Castelspina, Frascaro, Mombaruzzo, and Sezzadio.