title: ONJ
text: # ONJ
  
  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
  