OOB
OOB may refer to:
- Oob (Dragon Ball), a fictional character in Dragon Ball
- off our backs, US feminist periodical 1970–2008
- Order of battle, a listing of military units
- Out-of-bag error, a method of measuring prediction error
- Out-of-band management, using a dedicated management channel in computer networking
- Out of bounds, a state of violating boundary rules in sports, gaming (specifically speedrunning), or computer science.
- ÖoB, a Swedish discount chain
- Old Orchard Beach, a seaside resort town in Maine