| Official Name: | Río Cauto |
| Settlement Type: | Municipality |
| Subdivision Type: | Country |
| Subdivision Name: | Cuba |
| Subdivision Type1: | Province |
| Subdivision Name1: | Granma |
| Area Total Km2: | 1500 |
| Population As Of: | 2022 |
| Population Total: | 45,545 |
| Population Density Km2: | auto |
| Timezone: | EST |
| Utc Offset: | -5 |
| Coordinates: | 20.5636°N -76.9172°W |
| Elevation M: | 10 |
| Area Code: | +53-23 |
| Website: | https://www.riocauto.gob.cu/ |
Río Cauto is a municipality and town in the Granma Province of Cuba. It is located in the northern part of the province, upstream of the mouth of Cauto River.
In 2022, the municipality of Río Cauto had a population of 45,545.[1] With a total area of 1500km2,[2] it has a population density of 30/km2.