- ADARS stands for Antrim and District Amateur Radio Society (UK)
- ADARS stands for Airborne Data Acquisition and Recording System (National Instruments)
- ADARS stands for Army Defense Acquisition Regulation Supplement
- ADARS stands for Adaptive Antenna Receive System
- ADARS stands for Advanced Defense Avionics Response Strategy (USAF)
- ADARS stands for ASAS (All Source Analysis System) Data Recording and Summary System (intelligence)
- ADARS stands for Automated Drill Attendance Reporting System (Army)
ADARS