| Acronym | Definition |
|---|
| PPAO➣Psychiatric Patient Advocate Office (Ontario Ministry of Health and Long-Term Care) |
| PPAO➣Planned Parenthood Affiliates of Ohio (est. 1974; Columbus, OH) |
| PPAO➣Professional Paralegal Association of Ontario |
| PPAO➣Phuket Provincial Administration Organization (Phuket, Thailand) |
| PPAO➣Purified Pili in Alum-Oil (vaccine) |
| PPAO➣Personal Performance Assessment Opportunity (Bergen County Academies) |