| 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 |