| Acronym | Definition |
|---|
| ISTD | Imperial Society of Teachers of Dancing (UK) |
| ISTD | Internal Standard (Gas Chromatography) |
| ISTD | Inter-Service Topographical Department |
| ISTD | International Society of Typographic Designers (London, England) |
| ISTD | Instrument Systems and Technology Division (US NASA) |
| ISTD | Information Systems and Technology Department (various organizations) |
| ISTD | Institute for the Study and Treatment of Delinquency (UK) |
| ISTD | Integrated Space Technology Demonstration |
| ISTD | Institute for Safety Through Design (OSHA) |
| ISTD | International Society of Teledermatology |
| ISTD | ICT (Information and Communication Technology) and Science and Technology Division (UN Economic Commission for Africa) |
| ISTD | Integrated Services Technology Development |
| ISTD | Integrated Spatial-Temporal Detector |