| Acronym | Definition |
|---|
| PAPAS➣Pittsburgh Area Planted Aquarium Society (Pennsylvania) |
| PAPAS➣Pan Asia Pacific Aviation Services Ltd. (est. 1998; Lantau, Hong Kong) |
| PAPAS➣Partnership of Parents and Schools (Spain) |
| PAPAS➣Pin and Pellet Assay System |
| PAPAS➣Pennsylvania Association of Private Academic Schools, Inc. |