DTI

DTI may refer to:

Science and technology

 * Deep trench isolation; See Shallow trench isolation
 * Dial test indicator
 * Direct trader input, in the history of electronic data interchange
 * Diffusion tensor imaging, a structural medical imaging technique
 * Direct thrombin inhibitor
 * Diesel turbo injection, a brand name for common rail
 * Direct tension indicator
 * Deep tissue injury, see suspected deep tissue injury in List of medical abbreviations: S
 * Dye transfer inhibitor

Organizations

 * Defence Technology Institute, the Thai defence technology public organisation
 * Department of Trade and Industry (disambiguation), a government department in several countries
 * Detroit, Toledo and Ironton Railroad
 * Diversified Technology, Inc.
 * Directorate of Terrorist Identities, responsible for the Terrorist Identities Datamart Environment
 * Display Technologies, Inc., a joint venture of IBM and Toshiba
 * DT Infrastructure, Australian construction company

Other uses

 * Debt-to-income ratio, in the mortgage industry