- DATAR stands for Délégation Interministérielle à l’Aménagement du Territoire et à l’Attractivité Régionale (French: Interministerial Delegation for Territorial Planning and Regional Attractiveness; est. 1963)
- DATAR stands for Drug and Alcohol Treatment Access Report (Department of Alcohol and Drug Programs; California)
- DATAR stands for Digital Automated Tracking and Resolving (Canadian Forces Maritime Command)
- DATAR stands for Drug Abuse Treatment for AIDS-Risk Reduction (est. 1989; US NIH)
- DATAR stands for Distributed Aperture of Tethered Array Radar
- DATAR stands for Digital Automatic Tracking and Ranging
DATAR