OB

OB, O.B., or Ob may refer to:

Arts and entertainment

 * Ob, a fictional currency in The Great Explosion
 * Sam "O.B." O'Brien, a fictional character in the British soap opera Hollyoaks

Businesses and organizations

 * Odense Boldklub, a Danish football club
 * Oriental Brewery, a South Korean brewery, which produces the OB lagers
 * Outward Bound, an international outdoor education organization
 * Astrakhan Airlines (IATA code) (defunct)
 * Boliviana de Aviación (IATA code)

People

 * Ed O'Bradovich, an American former professional football player, known as "OB"
 * Old Badmintonians, former pupils of Badminton School, Bristol, England
 * Old Bedfordians, former pupils of Bedford School, England
 * Old Bristolians, former pupils of Bristol Grammar School, England

Places

 * Gulf of Ob, a bay of the Arctic Ocean in Northern Russia
 * Ob (river), a river in West Siberia, Russia
 * Ob Sea, an artificial lake on the river Ob
 * Ob, Germany, in Bidingen, Bavaria, Germany
 * Ob, Russia, a town in Novosibirsk Oblast, Russia
 * Ocean Beach, San Diego, a neighborhood of San Diego, California, United States

Science and technology

 * OB star, in astronomy, a hot, massive star of spectral types O or B
 * Ob, a class of objects in category theory
 * Object Manager (Windows), a Windows NT subsystem
 * Obstetrics, a medical specialty dealing with childbirth, often used in "obstetrics and gynaecology" (abbreviated OB/GYN)
 * Oligonucleotide/Oligosaccharide DNA-Binding-fold domain
 * Organizational behavior, an academic field
 * Outside broadcasting, a television broadcasting from a mobile television studio, such as a van

Other uses

 * Halfpenny (British pre-decimal coin), from "ob", archaic abbreviation
 * ob., died, from Latin obitus
 * o.b. (brand), a brand of feminine hygiene products
 * Order of battle
 * Order of Burma
 * Organizational behavior
 * "Over-the-counter bulletin board", in stock listings
 * Ouroboros, aka "O.B.", a character in the TV series Loki
 * "Out of bounds", an area outside the course play area, in golf