| Acronym | Definition |
|---|
| NUP | National Urban Park (various locations) |
| NUP | Neapolis University Pafos (Pafos, Cyprus) |
| NUP | Net Utility Plant |
| NUP | National Union of Pensioners |
| NUP | Northside Urban Pathways (education; PIttsburgh, PA) |
| NUP | No Update |
| NUP | National Unity Party |
| NUP | Nucleoporin |
| NUP | Non-Unit-Related Personnel (US DoD) |
| NUP | Necrotizing Ulcerative Periodontitis (oral condition) |
| NUP | Named User Plus (application licensing) |
| NUP | Neînceperea Urmaririi Penale (Romanian: not pressing legal charges) |
| NUP | New User Password |
| NUP | Nutrinopets.com |
| NUP | New Untitled Page (website) |
| NUP | Non-Unitary Pre-Coder |