| Acronym | Definition |
|---|
| ATRF➣American Tort Reform Foundation (est. 1997; Washington, DC) |
| ATRF➣Australasian Transport Research Forum |
| ATRF➣Alberta Teachers' Retirement Fund (Edmonton, Alberta, Canada) |
| ATRF➣Arafura Timor Research Facility (Australia) |
| ATRF➣Ancient Truth Research Foundation (UFO organization) |
| ATRF➣Advanced Technology Radar Fuze |