| Acronym | Definition |
|---|
| PUB | Pueblo (Amtrak station code; Pueblo, CO) |
| PUB | Public |
| PUB | Publication |
| PUB | Publisher |
| PUB | Publish |
| PUB | Public Utilities Board |
| PUB | Publicity |
| PUB | Publication (file name extension) |
| PUB | Public House (UK) |
| PUB | Pop-Up Blocker |
| PUB | Push Up Bra |
| PUB | Pop up Blocker |
| PUB | Publisher File |
| PUB | Publicite |
| PUB | Microsoft Publisher File (file extension) |
| PUB | Predictions in Ungauged Basins (International Association of Hydrological Sciences initiative) |
| PUB | Peptic Ulcer Bleeding |
| PUB | Please Unban Me |
| PUB | Pueblo, CO, USA - Pueblo Memorial Airport (Airport Code) |
| PUB | Poor Urban Biker |
| PUB | Panhellenic Union of Biologists (Greece) |
| PUB | Philip's Uncle's Boat (Little Britain sketch) |
| PUB | Paris Ultra-Wide Band |
| PUB | Proposal Update Bulletin |