ETPI
| 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) |