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