| Acronym | Definition |
|---|
| OBK➣Object Backup |
| OBK➣Oefening Baart Kunst (Dutch: Practice Makes Perfect; band; Netherlands) |
| OBK➣Old Black Kettle (band) |
| OBK➣Northbrook, Illinois (Airport Code) |
| OBK➣Ocean Beach Kiwi (Hastings, New Zealand) |
| OBK➣Outward Bound Korea (Seoul, South Korea) |
| OBK➣Ore Body Knowledge (geoscience) |
| OBK➣Order of Blessed Ksenia |