| Acronym | Definition |
|---|
| ESCA | Electron Spectroscopy for Chemical Analysis |
| ESCA | Escaflowne (anime series) |
| ESCA | Environmental Services Cooperative Agreement (Fort Ord; California) |
| ESCA | Escuela Superior de Comercio y Administración (México) |
| ESCA | Emergency Services Coordinating Agency |
| ESCA | European Speech Communication Association |
| ESCA | El Shaddai Christian Academy (various locations) |
| ESCA | Exhibition Services & Contractors Association (US) |
| ESCA | English Speaking Cancer Association (Geneva, Switzerland) |
| ESCA | Exposition Service Contractors Association |
| ESCA | Elective Site Cleanup Agreement (Arkansas) |
| ESCA | Eritrean Solidarity and Cooperation Association (UN) |
| ESCA | Egyptian Society of Crystallography and Its Applications |
| ESCA | Egyptian Supreme Council of Antiquities |
| ESCA | Empire State Consumer Association |