- A particular subdivision of ancient Laconia.
- obeah, a West Indian form of folk magic or medicine.
- Officer of the Order of the British Empire
- Office of Bilingual Education
- Office of Business Economics (US)
- Operating-Basis Earthquake
- Oregon Board of Education
- Ottawa Board Of Education
- Out of Body Experience
- Out of Buggy Experience (Powerkiting slang)
- Outcome-Based Education