| Acronym | Definition |
|---|
| HRB | H&R Block, Inc. |
| HRB | High-Risk Behavior |
| HRB | Historic Review Board (various locations) |
| HRB | High Rise Building |
| HRB | Harbin, China (Airport Code) |
| HRB | Human Resources Branch (Canada) |
| HRB | Housing Revenue Bond (various organizations) |
| HRB | Hebraic Roots Bible |
| HRB | Handelsregister Abteilung B (German: Commercial Division B; Germany) |
| HRB | Henry Russell Bruce (advertising agency; Iowa) |
| HRB | Hot-Rolled Band (metal product) |
| HRB | Humanities Research Board (UK) |
| HRB | Human Rights Bureau (Montana DOL&I) |
| HRB | Haiti International Airline (ICAO code) |
| HRB | Heat Recovery Boiler |
| HRB | Rockwell Hardness B Scale (also seen as Hardness Rockwell B) |
| HRB | Hardstyle Republic Brisbane (band) |
| HRB | Heuristic Register Bound |
| HRB | Human Rights Bibliography |
| HRB | Highways Research Board (UK) |
| HRB | Haller, Raymond, and Brown |
| HRB | High Risk Borrower |
| HRB | High-Readiness Brigade (UN) |
| HRB | Human Resources Boosters |