OG

OG, O.G., or Og may refer to:

Arts and entertainment

• O.G. Original Gangster, a 1991 album by Ice-T
  • "O.G. Original Gangster" (song), title track
• Original Gangstas, a 1996 action movie directed by Larry Cohen
  • Original Gangstas (soundtrack)
• Opera Ghost, alternate name for Erik (The Phantom of the Opera), the title character from Phantom of the Opera
• Omnium Gatherum, a Finnish melodic death metal band

Alumni

• Old Grammarian, a former pupil of Karachi Grammar School
• Old Gregorian, a former pupil of Downside School
• Old Giggleswickian, a former pupil of Giggleswick School
• Old Gower, a former pupil of University College School
• Old Greshamian, a former pupil of Gresham's School
• Old Guildfordian, a former pupil of The Royal Grammar School, Guildford

Science and technology

• og, a namespace identifier typically tied in web pages to the Facebook Open Graph protocol
• Objective glass in optics, especially refractive telescopes, the objective lens
• Obstetrics and gynaecology, the two medical specialties dealing with the female reproductive organs
• Orange G, a counterstain used in the Pap stain
• Original gravity, used in calculating the alcohol content of a drink
• Oganesson, the name for element 118 on the periodic table, with symbol Og, named after Russian scientist Yuri Oganessian

Sport

• Own goal, a term used in association football
• Offensive guard, a term used in American football
• Olympic Games
• OG (eSports), a professional Dota 2 team

Other uses

• Og, an ancient Amorite king of Bashan
• Olive green, a common colour in military use
• One-Two-GO Airlines (IATA airline code: OG)
• Original gangster (disambiguation), various meanings derived from a slang term for a veteran gang member
• Original Gangsters (gang), a Swedish gang
• River Og, a river in Wiltshire, England

See also

• 0G (disambiguation)