OUP
| Acronym | Definition |
|---|---|
| OUP | Oxford University Press |
| OUP | Operation Unified Protector (NATO) |
| OUP | Office of University Partnerships (HUD) |
| OUP | Official Unionist Party |
| OUP | Orfeão Universitário do Porto (Portugal: Choir of the University of Porto) |
| OUP | Open Unified Process (computing) |
| OUP | Ornstein-Uhlenbeck Process |
| OUP | Online Urban Planning (Redondo Beach, California) |