| Frigido | |
| Source1 Location: | Mounts Sagro and Rasore; eastern branch from Monte Cavallo |
| Mouth: | Ligurian Sea |
| Mouth Coordinates: | 44.0036°N 10.1042°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Tuscany, Italy |
| Length: | 17km (11miles) |
| Source1 Elevation: | c. 1750m (5,740feet) |
| Mouth Elevation: | 0m (00feet) |
| Discharge1 Avg: | 6.44m3/s |
| Basin Size: | 61km2 |
The Frigido is a short river in Tuscany, central Italy, whose course of 17 km is entirely included in the province of Massa-Carrara. It starts from two branches, one having its source in the Monte Sagro and Monte Rasore (Apuan Alps), the other near the village of Forno.
After running into a deep valley in the Apuan Alps, it receives the waters of the Renara and Fosso d'Antona, and then flows in Massa before reaching the Ligurian Sea near Marina di Massa.