| HRA | Hampton Roads Academy 
| Others |
| HRA | Handoff Request Acknowledge
| Others |
| HRA | Happy Room Academy
| Others |
| HRA | Haverhill Running Academy
| Others |
| HRA | Hay Remuneration Assistant
| Others |
| HRA | Head Restraint Adjustment
| Others |
| HRA | Headlamp Range Adjustment
| Others |
| HRA | Health Registration Authority
| Others |
| HRA | Health Reimbursement Account
| Others |
| HRA | Health Reimbursement Accounts
| Others |
| HRA | Health Reimbursement Arrangement
| Others |
| HRA | Health Reimbursement Arrangements
| Others |
| HRA | Health Research Alliance
| Others |
| HRA | Health Research Authority
| Others |
| HRA | Health Risk Appraisal
| Others |
| HRA | Health Risk Assessment
| Others |
| HRA | Health Risk Assessments
| Others |
| HRA | Heartland Racing Association
| Others |
| HRA | Hereditary Renal Adysplasia
| Others |
| HRA | High Relative Accuracy
| Others |
| HRA | High Resolution Anoscopy
| Others |
| HRA | High Right Atrium
| Others |
| HRA | High Risk Area
| Others |
| HRA | High-Radiation Area
| Others |
| HRA | His/Her Royal Highness
| Others |
| HRA | Historic Racecar Association
| Others |
| HRA | Historic Rally Association
| Others |
| HRA | Historic Rhone Auto
| Others |
| HRA | Historical Records of Australia
| Others |
| HRA | Holden Roadside Assistance
| Others |
| HRA | Home Runs Allowed
| Others |
| HRA | Honda Research America
| Others |
| HRA | Honda's Roadside Assistance
| Others |
| HRA | Hood Rat Artists
| Others |
| HRA | Horizontal Rotation Angle
| Others |
| HRA | Hot Rear Action
| Others |
| HRA | Hot Rod Association
| Others |
| HRA | House Rent Allowance
| Business, Company, Finance, Taxation |
| HRA | Housing and Redevelopment Authority
| Others |
| HRA | Human Reliability Analysis
| Others |
| HRA | Human Resource Authorization
| Others |
| HRA | Human Resources Administration
| Others |
| HRA | Human Resources Agency
| Others |
| HRA | Human Resources Allocation
| Others |
| HRA | Human Rights Act
| Others |
| HRA | Human Rights Association
| Others |
| HRA | Humane Rescue Alliance
| Others |
| HRA | Hyundai Roadside Assistance
| Others |
| HRA | Mansehra Airport
| Others |
| HRA | Mansehra, Pakistan
| Others |