| Acronym | Definition |
|---|
| APIO➣Agent Programming Interface Overview |
| APIO➣Assistant Public Information Officer (India) |
| APIO➣Asian Pacific Islander Organization (est. 1998) |
| APIO➣Application Platform Infrastructure Optimization (Microsoft) |
| APIO➣Asia-Pacific Informatics Olympiad (annual) |
| APIO➣Austrian Paintball Indoor Open |