TDI

'TDI' may stand for:

★ Tabbed document interface, a type of graphical user interface.

★ Technical Diving International, a technical diving organisation.

★ Texas Department of Insurance.

★ ''The Dartmouth Independent'', a newspaper at Dartmouth College.

★ Time Delay and Integration, timing synchronization in an image sensor.

★ Toluene diisocyanate, an organic chemical.

★ Total Dual Integrality, a concept used in optimization.

★ Total Drama Island, an animated series on Teletoon that started July 7, 2007.

★ Toyota Direct Ignition, an ignition system used on some Toyota engines.

★ Transport Dispatch Interface, used by NT series Windows to abstract level 7 APIs into a common protocol for the Transport Protocol layer.

★ Transformational Defense Industries, firearms industry.

★ Turbocharged Direct Injection, a diesel engine used in cars made by the Volkswagen Group.

★ Time Dependent Inhibition, a concept in pharmacokinetics.