- DTAD stands for Deutscher Auftragsdienst (German: German Order Service)
- DTAD stands for Digital Telephone Answering Device
- DTAD stands for Drain Tube Attachment Device (healthcare)
- DTAD stands for Dynamic Taint Analysis Detector for Information Security (software)
- DTAD stands for Digital Terrain Analysis Data
- DTAD stands for Department of Teaching and Academic Development (Canada)
DTAD