| Acronym | Definition |
|---|
| HUP➣Hangup (Unix command) |
| HUP➣Howard University Press (Washington, DC) |
| HUP➣Hrvatska Udruga Poslodavaca (Croatian: Croatian Employers' Association) |
| HUP➣Hospital of the University of Pennsylvania |
| HUP➣Hang up |
| HUP➣Hungarian Unix Portal |
| HUP➣Home Use Program |
| HUP➣Hluhluwe-Umfolozi Park (South Africa) |
| HUP➣Heisenberg Uncertainty Principle |
| HUP➣Hosei University Press (Hosei University; Tokyo, Japan) |
| HUP➣Hardware Upgrade Program |
| HUP➣Hot Uniaxial Pressing |
| HUP➣Heavy Utility Personnel (military vehicle) |
| HUP➣Hold Until Published |
| HUP➣Hiroshima University Press (Hiroshima, Japan) |