| Acronym | Definition |
|---|
| ETPI➣Eastern Telecommunications Philippines Inc. |
| ETPI➣Education Tax Policy Institute (est. 1997; Columbus, OH) |
| ETPI➣Entertainment Technologies & Programs Inc. (Houston, TX) |
| ETPI➣Environmental Technology Program for Industry (Pakistan) |
| ETPI➣Extrasystolic Test Pulse Interval (cardiology) |