- ADAT stands for Abu Dhabi Aircraft Technologies (Abu Dhabi, UAE)
- ADAT stands for Academic Database Assessment Tool (Joint Information Systems Committee)
- ADAT stands for Alesis Digital Audio Tape
- ADAT stands for Alcohol and Drug Action Team
- ADAT stands for Allied Directorate of Air Transport (various armed forces)
- ADAT stands for Advance Diet As Tolerated
- ADAT stands for Automatic Data Accumulator and Transfer
- ADAT stands for Airfield Damage Assessment Team
- ADAT stands for Air Defense Advanced Technology
ADAT