ONJ may refer to:
- Olivia Newton-John (1948–2022), an English-born Australian singer and actress
- osteonecrosis of the jaw, a severe bone disease that affects the maxilla and the mandible
- Odate-Noshiro Airport (IATA airport code: ONJ), in Akita Prefecture, Japan
- Onjob language (ISO 639 language code: onj)
- Orchestre National de Jazz, a French jazz ensemble
See also
Search for "onj" on Misplaced Pages.- All pages with titles containing Onj or Onjs
- All pages with titles beginning with ONJ
- All pages with titles beginning with onj
- OJN
- JNO
- Jon (disambiguation)
- NJO (disambiguation)
- NOJ (disambiguation)
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