TBI

TBI may refer to:

• TBI plc, an airport owner and operator
• Tennessee Bureau of Investigation, the criminal investigative arm of the state government of Tennessee
• The Bourne Identity
• Total body irradiation, a form of radiation therapy used most commonly in bone marrow transplantation
• Tracheobronchial injury, an injury to the trachea or main bronchi
• Trade Bank of Iraq, a publicly owned bank headquartered in Baghdad, Iraq
• Traumatic brain injury, a physical trauma to the brain
• Throttle Body Injection, a type of fuel injection system used on internal combustion engines
• TBI Solicitors, a UK-based law firm