| Acronym | Definition |
|---|
| PSAO➣Penn State Anime Organization |
| PSAO➣Permanent Staff Administration Officer (UK) |
| PSAO➣Pea Seedlings Amine Oxidase |
| PSAO➣Prescribed Statement of Actuarial Opinion |
| PSAO➣Primary Staff Action Officer |
| PSAO➣Pharmacy Services Administration Organization |