| Caetetus Ecological Station | |
|---|---|
| Estação Ecológica dos Caetetus | |
 A stream in the ESEC | |
  | |
| Nearest city | Gália, São Paulo |
| Coordinates | 22°24′11″S 49°42′08″W / 22.403177°S 49.702108°W |
| Area | 2,176.10 ha (8.4020 sq mi) |
| Designation | Ecological station |
| Created | 9 August 1976 |
| Administrator | Instituto Florestal SP |
The Caetetus Ecological Station (Portuguese: Estação Ecológica dos Caetetus) is a state-level ecological station (ESEC) in the state of São Paulo, Brazil. It protects one of the last remnants of the semi-deciduous forest that once covered the west of the state, and is home to a population of the highly endangered black lion tamarin.