OJ
- CJOJ-FM
- Dennis Mugo
- Esperanto
- Juice (disambiguation)
- Lindsay Owen-Jones
- Nope (film)
- O. J. Childress
- O. J. Howard
- O. J. Mayo
- O. J. McDuffie
- O. J. Simpson
- O.J. (TUGS)
- OJ (programming tool)
- OJ Borg
- OJ Frederique Jr.
- OJ Porteria
- OJ da Juiceman
- Official Journal of the European Union
- Ojibwe language
- Old Japanese
- Olivia Jade
- Olivier Jacque
- Olli Jokinen
- Omar 'OJ' Koroma
- On30 gauge
- Open-jaw ticket
- Oran "Juice" Jones
- Orange Julius
- Orange juice
- Order of Jamaica
- Orlando Jordan
- Orlando Julius
- Ottis Anderson
- Overland Airways
- The O'Jays