| Abbreviation | Definition |
|---|---|
| ARGUS | Advanced Research Group Uniting Superhumans |
| ARHs | alcohol-related harms |
| ARIAH | Association of Research Institutes in Art History |
| ARIB | Advanced Research Incubator in Biosciences |
| ARIB | Applied Research and Innovation Branch |
| ARIC | Amagasaki Research Incubation Center |
| ARIES | Accelerator Research and Innovation for European Science |
| ARIES | Airborne Research Integrated Experiments System |
| ARIF | Alberta Research and Innovation Framework |
| ARIG | Alcohol Research Interest Group |
| ARIJ | Applied Research Institute-Jerusalem |
| ARIJ | Applied Research Institute–Jerusalem |
| ARIS | Advanced Research Instrumentation Ship |
| ARIS | Advanced Research Investment Solutions |
| ARISE | Associates for Research Into the Science of Enjoyment |
| ARISU | Assessment and Research Integration for School Use |
| ARL | Analytical Research Laboratories |
| ARL | Analytical Research Laboratory |
| ARL | Applications and Research Lab |
| ARL | Applied Research Laboratories |