| Acronym | Definition |
|---|
| APPO➣Assembly of the Peoples of Oaxaca (est. 2006; Mexico) |
| APPO➣Asamblea Popular del Pueblo de Oaxaca (Spanish: Popular Assembly of the People of Oaxaca) |
| APPO➣Asia-Pacific Panasonic Open (golf tournament) |
| APPO➣Association of Professional Police Officers (union) |
| APPO➣Assistance Program for Pet Owners |
| APPO➣Academic Planning and Performance Office (University of Leeds; UK) |
| APPO➣Accounts Payable and Purchase Orders |