POIS
| Acronym | Definition |
|---|---|
| POIS | Post Orgasmic Illness Syndrome (condition) |
| POIS | Philippine Ocular Inflammation Society (Quezon City, Philippines) |
| POIS | Post Office Insurance Society (UK) |
| POIS | Pulmonary Over-Inflation Syndrome |
| POIS | Polish Osteogenesis Imperfecta Society |