On, on, or ON may refer to:

  • On (Japanese prosody), the counting of sound units in Japanese poetry
  • ├ľn, a 1966 Swedish film
  • On (novel), by Adam Roberts
  • Air Nauru IATA airline designator ON
  • Heliopolis (ancient), an ancient city in Egypt, from a transliteration of its ancient Egyptian name
  • ITV Digital, a failed British digital television service originally named ONdigital
  • Leg side, in the game of cricket
  • Nintendo On, a fake video game console
  • Old Norse, a North Germanic language commonly referenced in etymology
  • Old Nottinghamian, a person who attended or worked at Nottingham High School
  • ON Semiconductor, a leading supplier of power management solutions
  • O'Nan group, a mathematical group
  • Ontario, Canada
  • Ontology, a branch of philosophy that deals with the concept of being
  • On'yomi reading of Japanese kanji characters
  • Osteonectin, a glycoprotein
  • Osteonecrosis
  • Order of the Nation, a Jamaican honour
  • Overground Network, a railway scheme in South London
  • Overmyer Network, an ill-fated US television network
  • OS/Net, the OpenSolaris Community
  • Optic neuritis, especially relevant in multiple sclerosis

Read more about On:  In Popular Music

Other articles related to "on":

On, On, U Of K
... On, On, U of K, also punctuated as "On! On! U of K", is a fight song at the University of Kentucky ...