| El Triunfo Biosphere Reserve | |
|---|---|
IUCN category VI (protected area with sustainable use of natural resources)[1] | |
 El Triunfo | |
  Location of El Triunfo Biosphere Reserve in Mexico | |
| Location | Chiapas, Mexico |
| Coordinates | 15°38′27″N 92°43′39″W / 15.64083°N 92.72750°W |
| Area | 1,191.77 km2 (460.14 sq mi) |
| Designation | biosphere reserve |
| Designated | 1990 (national) 1993 (international) |
| Governing body | National Commission of Natural Protected Areas |
El Triunfo Biosphere Reserve is a biosphere reserve in southern Mexico. It is in the Sierra Madre de Chiapas in southern Chiapas.