AIOP
| Acronym | Definition |
|---|---|
| AIOP | Australian Institute of Office Professionals |
| AIOP | Associazione Italiana Ospedalità Privata (Rome, Italy) |
| AIOP | American Institute of Physics (College Park, MD; est. 1931) |
| AIOP | Accademia Italiana Odontoiatria Protesica (Italian: Italian Academy of Prosthetic Dentistry) |
| AIOP | All-in-One PC (Personal Computer) |