IDT

IDT may refer to:

Technology

 * Information and digital technology, a digitally focused information technology landscape
 * Interdigital transducer, or interdigitated transducer, a sensor and transmitter for a surface acoustic wave
 * Interrupt descriptor table, a memory structure of x86 microprocessors
 * Insulation-displacement technology, or insulation-displacement termination, an electrical connector
 * Interactive data transformation, a form of data transformation via a visual interface intended for analysts and business users with limited technical knowledge

Organisations

 * IDT Corporation, a long-distance telephone carrier
 * Integrated Device Technology, a semiconductor manufacturer
 * Integrated Display Technology, a Hong Kong-based producer of LCD products
 * Integrated DNA Technologies, a U.S. supplier of custom nucleic acids
 * International Display Technology, a joint-venture of IBM and the Taiwanese Chi Mei group
 * IDT Entertainment, film producer

Other

 * Inherited disorders of trafficking
 * Israel Daylight Time
 * It Dies Today, a metalcore band from Buffalo, New York
 * Inactive Duty Training, U.S. military duty, for example in the Inactive National Guard