| Acronym | Definition |
|---|
| OIB➣Ok, I'm Back (IRC) |
| OIB➣Ocean Isle Beach (North Carolina) |
| OIB➣Osoyoos Indian Band (Okanagan Nation Alliance; Canada) |
| OIB➣Olympic Incline Bench (exercise equipment) |
| OIB➣Option Internationale du Baccalauréat (French educational degree program) |
| OIB➣Österreichisches Institut für Bautechnik (Austria) |
| OIB➣Organic Industrial Base (US Army) |
| OIB➣Oceanic Island Basalt |
| OIB➣Operator Initiated Bit (built in test) |
| OIB➣Office in a Box (Fusion Systems) |
| OIB➣Ozellestirme Idaresi Baskanligi |
| OIB➣Orbiter Interface Box (US NASA) |
| OIB➣Otago Infantry Battalion (New Zealand) |
| OIB➣Office for Infrastructure and Logistics in Brussels (EU) |
| OIB➣Opportunities In Business (business brokerage in Minneapolis, MN) |
| OIB➣Osobni Indentifikacijski Broj (Croatia) |
| OIB➣Oil Injector Button |
| OIB➣Online Index Books (Cott Systems) |