OT or Ot may refer to:

Arts and entertainment OT (band), a Serbian pop/rock band Ot, stage name of Anupong Prathompatama, a member of the Thai rock band Carabao Operation Transformation (TV series), an Irish health and fitness programme OT: Our Town, a 2002 documentary film about a high school in Compton, California that stages Thornton Wilder's Our Town Operación Triunfo (Spanish TV series), a Spanish reality television talent show Ot, the title character of Ot el bruixot, a Spanish comic strip Ot, one of the two main characters of Ot en Sien, a Dutch children's book series Star Wars original trilogy, first three films in the Star Wars franchise

Businesses and organizations Oakville Transit, the bus company serving Oakville, Ontario, Canada Obsession Telescopes, an American telescope maker Oranga Tamariki, a New Zealand government department Organisation Todt, a civil and military engineering group of Nazi Germany Oyu Tolgoi, a mine in Mongolia

Religion Old Testament, the first part of the Christian Bible Operating Thetan, a spiritual state in Scientology Ot Ene, the Mongolian goddess of marriage

Science and technology Medicine Occupational therapy Occupational therapist Operating theatre (not to be confused with operational theatre, or war theatre) Oxytocin, a mammalian hormone

Other uses in science and technology Oblivious transfer, a type of cryptography protocol Operational technology, hardware/software technology dedicated to physical assets in an enterprise Operational transformation, an optimistic concurrency control method for group editing Optimality theory, a linguistic model Oxygenated treatment, used to reduce corrosion in a boiler Optical telegraph, used to convey textual information by means of visual signals

People Ot of Urgell (c. 1065–1122), Catholic saint and bishop of Urgell Ot de Montcada, 11th century Catalan troubadour Ot Pi Isern (), Spanish bike-trials rider Ot Louw (1946–2021), Dutch film editor Oswald Tschirtner (1920–2007), Austrian artist also known as O.T.

Other acronyms Offensive tackle, either of two football positions Overtime (sports), a sports game past regulation because of a tie game Off topic Overtime, a designation indicating working past normal work hours

Other uses Ot (Cyrillic) (Ѿ, ѿ), a letter of the early Cyrillic alphabet Lemon tea, Hong Kong beverage, cha chaan teng abbreviation (see Cha chaan teng#Common phrases and abbreviations) The OT, a television postgame show of NFL on Fox Oakville Trafalgar High School, Oakville, Ontario, Canada Otmoor or Ot Moor, an area of wetland and wet grassland in Oxfordshire, England Aeropelican, IATA airline designator OT O-T map, a type of medieval world map

See also Ott (disambiguation) O-T Fagbenle (born 1981), a British actor, writer and director, full name Ọlátúndé Ọlátẹ́jú Ọláọlọ́run Fágbénlé