| Acronym | Definition |
|---|
| ETPA | Entreprise de Travaux Publics d'Armor (French: Business of Public Works of Armor) |
| ETPA | École de Tir du Pays d'Aubagne (French school shooting) |
| ETPA | Envelope Tracking Power Amplifier (physics) |
| ETPA | Emergency Tenant Protection Act of 1974 |
| ETPA | East Timor Public Administration |
| ETPA | European Transpersonal Psychology Association |
| ETPA | Entreprise de Tonnelage Polissage Avivage (French polishing company) |
| ETPA | East Texas Police Academy (Kilgore, TX) |
| ETPA | Estonian Trade Promotion Agency |
| ETPA | Elliston Tourism and Progress Association (Australia) |