OT

Businesses and organizations

• Oakville Transit, the bus company serving Oakville, Ontario, Canada
• Obsession Telescopes, an American telescope maker
• 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
• 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.

Acronym

• 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, Ñ¿), a letter of the early Cyrillic alphabet
• 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