| Acronym | Definition |
|---|
| PSAI➣Portable Sanitation Association International (Bloomington, MN; industry promotion and information; est. 1970) |
| PSAI➣Political Studies Association of Ireland (est. 1982) |
| PSAI➣Pediatric Services of America Inc |
| PSAI➣Pre-School Activities Inventory (psychology) |
| PSAI➣Paduan Suara Anak Indonesia (Indonesian: Indonesian Children Choir) |
| PSAI➣Princeton Students Against Infanticide (Princeton University; Princeton, NJ) |