| Ostuacán | |
| 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: | 946.4 |
| Population As Of: | 2005 |
| Population Total: | 17,067 |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 17.4°N -113°W |
Ostuacán is a town and municipality in the Mexican state of Chiapas in southern Mexico.
In 2010, the municipality had a total population of 17,067,[1] up from 17,026 in 2005.[2] It covers an area of 946.4 km².
In 2010, the town of Ostuacán had a population of 2,979.[1] Other than the town of Ostuacán, the municipality had 111 localities, the largest of which (with 2010 populations in parentheses) were: Nuevo Juan del Grijalva (1,598), Plan de Ayala (1,463), and Nuevo Xochimilco (1,393), classified as rural.[1]