TBI may refer to:

Medicine

Total body irradiation, radiation therapy Tracheobronchial injury (damage to the airways) Traumatic brain injury Triamcinolone benetonide, a glucocorticoid

Other Tony Blair Institute for Global Change Temple Beth Israel (disambiguation) TBI plc, an airport owner and operator Tennessee Bureau of Investigation Trade Bank of Iraq, Baghdad TBI Bank, Sofia, Bulgaria Throttle body injection, in internal combustion engines TBI Solicitors, UK, a law firm Task-based instruction or task-based language teaching

See also