| Osumacinta | |
| Settlement Type: | Municipality |
| Pushpin Map: | Mexico |
| Pushpin Label Position: | above |
| Pushpin Mapsize: | 300 |
| Pushpin Map Caption: | Location in Mexico |
| Subdivision Type: | Country |
| Subdivision Name: |  Mexico |
| Subdivision Type1: | State |
| Subdivision Name1: | Chiapas |
| Unit Pref: | Imperial |
| Area Total Km2: | 221.1 |
| Population As Of: | 2010 |
| Population Total: | 3,792 |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 16.9403°N -93.0931°W |
| Elevation M: | 397 |
Osumacinta is a town and municipality in the Mexican state of Chiapas in southern Mexico.
As of 2010, the municipality had a total population of 3,792,[1] up from 3,132 as of 2005.[2] It covers an area of 221.1 km².
As of 2010, the town of Osumacinta had a population of 2,023.[1] Other than the town of Osumacinta, the municipality had 15 localities, none of which had a population over 1,000.[1]