| Cosgaya | |
| Settlement Type: | Town |
| Pushpin Map: | Spain |
| Pushpin Map Caption: | Location in Spain |
| Subdivision Type: | Country |
| Subdivision Name: |  Spain |
| Subdivision Type1: | Autonomous community |
| Subdivision Type2: | Province |
| Subdivision Name2: | Cantabria |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Camaleño |
| Coordinates: | 43.1089°N -4.7264°W |
| Elevation M: | 530 |
| Population Total: | 52 |
| Population As Of: | 2008 |
| Blank Name Sec1: | Official language(s) |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 39582 |
| Area Code Type: | Dialing code |
Cosgaya is a Spanish town in the municipality of Camaleño, situated in the comarca of Liébana, located in the furthermost area to the west of Cantabria. The town lies on the right bank of the Deva River. In 2006 it had a population of 47 (INE).
It is divided in three rural neighbourhoods: Areños, Treviño and Cosgaya