| Acronym | Definition |
|---|
| HRL➣Host Revocation List |
| HRL➣Housing and Residential Life (various schools) |
| HRL➣High Rock Lake (North Carolina) |
| HRL➣Hughes Research Laboratories |
| HRL➣Harlingen, TX, USA (Airport Code) |
| HRL➣Health Reference Level |
| HRL➣Hydrosystems Research Laboratory (Florida Atlantic University) |
| HRL➣Hunter River Lancers |
| HRL➣Horizontal Reference Line |
| HRL➣Health Research Laboratory |
| HRL➣Hereditary, Relativist and Logistic (economic theory) |
| HRL➣Home Run League (adult Wiffle ball league) |
| HRL➣Hemostasis Reference Laboratory (Hamilton Civic Hospitals Research Centre, Hamilton, Ontario, Canada) |
| HRL➣Halifax Regional Libraries |
| HRL➣Hardware Requirements List |
| HRL➣Histopathology Reference Library (Hercules, CA) |