ISUP
| Acronym | Definition |
|---|---|
| ISUP | Inflatable Stand Up Paddle Board (various companies) |
| ISUP | ISDN User Part |
| ISUP | Institut de Statistiques de l'Université de Paris (French: University of Paris Institute of Statistics; est. 1922; Paris, France) |
| ISUP | Integrated Services User Part |
| ISUP | International Society of Urological Pathology |
| ISUP | International Summer University Program (various locations) |
| ISUP | International Symposium on Unconventional Plasmas |