WPSI
| Acronym | Definition |
|---|---|
| WPSI | Wildlife Protection Society of India |
| WPSI | World Petroleum Supply, Inc. (Texas) |
| WPSI | Workshop on Prosody, Syntax and Information |
| WPSI | Work Package Status Input |
| WPSI | Wahler Physical Symptom Inventory (diagnostic tool) |
| WPSI | Washington Psycho-Social Seizure Inventory (psychology) |