| Acronym | Definition |
|---|
| IDT | Integrated Device Technology, Inc. (Santa Clara, CA, USA) |
| IDT | I Don't Think |
| IDT | Identity Theft |
| IDT | Interdisciplinary Team |
| IDT | Integrated DNA Technologies |
| IDT | Interrupt Descriptor Table |
| IDT | Inactive Duty Training |
| IDT | Integrated Device Technology |
| IDT | Interrupt Dispatch Table |
| IDT | Integrated Document Technologies (various locations) |
| IDT | It Dies Today (band) |
| IDT | Instructional Design & Technology |
| IDT | Investigación y Desarrollo Tecnológico (Spanish: research and technological development) |
| IDT | Independent Development Trust (South Africa) |
| IDT | Inno Design Tech (trade show) |
| IDT | Interdepartmental Transfer (various organizations) |
| IDT | Intra-District Transfer (various schools) |
| IDT | Intensive Day Treatment |
| IDT | Investigation Definition Team |
| IDT | Integrated Digital Terminal |
| IDT | Indefinite Delivery Type (government contract type) |
| IDT | Instrument Development Team |
| IDT | International Design and Test (workshop) |
| IDT | Israel Daylight Time (UTC + 3 hours) |
| IDT | Inter-Digital Transducer |
| IDT | Instrument Definition Team |
| IDT | Intradermal Dilutional Testing (allergy testing) |
| IDT | International Date Format |
| IDT | Industry, Distribution and Transport |
| IDT | Instituto Dominicano de Tecnologia |
| IDT | Image Dissector Tube |
| IDT | Internet Directory Trust (resource) |
| IDT | Individual Duty Training |
| IDT | Independent Developers Team (various organizations) |
| IDT | Internet Design Technology |
| IDT | Indian Daylight Time |
| IDT | Interdisciplinary Dentofacial Therapy |
| IDT | Initial Deformation Temperature (ash fusion) |
| IDT | Internet Data Transfer (software) |
| IDT | Information Dissemination and Training |
| IDT | IFICS Data Terminal |
| IDT | Integrated Development Team |
| IDT | Independent Duty Technician |
| IDT | Ireland Daylight Time (UTC + 1 hour) |
| IDT | Internet Development Toolbox |
| IDT | Icewind Dale Trilogy (book by R.A. Salvatore) |
| IDT | International Discount Telecom |
| IDT | Inter-Digit Timeout |
| IDT | Integrated Delivery Team |
| IDT | Impact Deceleration Tower |
| IDT | Individual Drill Training (US DoD) |
| IDT | Interactive Display Terminal |
| IDT | Independent Developmental Tester |
| IDT | Integrated Document Traceability |
| IDT | Individual Dwell Time |
| IDT | Initial Deployment Trial |
| IDT | Interrupt Dispatch Time (Linux) |