OG

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

Characters

 * Og, in Time Bandits
 * Og, in Mike, Lu & Og
 * Og, the leprechaun in the stage musical Finian's Rainbow and the subsequent film adaptation
 * Ogden "Og" Morrow, in Ready Player One
 * Original Girls, in the TV series Teen Mom OG

Music

 * "O.G.", a song by Snoop Dogg from Death Row: The Lost Sessions Vol. 1
 * Omnium Gatherum, or OG, a Finnish band

Other uses in arts and entertainment

 * O.G. (film), a 2018 film
 * OG (upcoming film), an Indian gangster film by Sujeeth
 * Og, the setting of the novel The Secret World of Og and its associated film

People

 * Og, an ancient Amorite king of Bashan
 * OG Anunoby (born 1997), British basketball player
 * Ogom Chijindu, Nigerian sportswoman known as "OG"

Science and technology

 * Oganesson, symbol Og, a chemical element
 * Obstetrics and gynaecology
 * Orange G, a synthetic dye
 * Original gravity, used in calculating the alcohol content of a drink
 * og, a namespace identifier typically tied in web pages to the Facebook Open Graph protocol

Sports

 * OG (esports), a professional Dota 2 team
 * Offensive guard, a player position in American and Canadian football
 * Own goal, a term used in association football

Other uses

 * Original Gangsters (gang), a Swedish gang
 * River Og, Wiltshire, England
 * One-Two-GO Airlines (IATA airline code: OG)