OUB
| Acronym | Definition |
|---|---|
| OUB | Overseas Union Bank (Singapore) |
| OUB | Offshore Petroleum Discharge System (OPDS) Utility Boat (US DoD) |
| OUB | Office of Undergraduate Biology (Cornell University) |
| OUB | Opportunities Unlimited for the Blind (est. 1994; Michigan) |
| OUB | Offentlig Utvalg for Blindeskrift (Norwegian: Public Selection of Braille; Oslo, Norway) |
| OUB | OPDS Utility Boat |