ETCA
| Acronym | Definition |
|---|---|
| ETCA | East Texas Christian Academy (Tyler, TX) |
| ETCA | Education & Training Course Announcements |
| ETCA | East Tennessee College Alliance |
| ETCA | European Tour Caddies Association (Surrey, England) |
| ETCA | Emergency Terrain Clearance Altitude |
| ETCA | Exchange-Type Chromosome Aberrations (nuclear physics) |