| 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 |