| HRD | Ham Radio Deluxe 
| Others |
| HRD | Hard Rocker Dude
| Others |
| HRD | Hardwood Mountain Bike Park
| Others |
| HRD | Hatch Restraint Device
| Others |
| HRD | Helical Rail Design
| Others |
| HRD | Herding Ranch Dog
| Others |
| HRD | Hertzsprung-Russell Diagram
| Others |
| HRD | Heterobasidion Root Disease
| Others |
| HRD | Hidden Read Only Directory
| Others |
| HRD | High Rate Detector
| Others |
| HRD | High Rate Dosimeter
| Others |
| HRD | High Resolution Diagnostic Diskette
| Others |
| HRD | High Resolution Display
| Others |
| HRD | High Risk Driver
| Others |
| HRD | High-Rate Discharge
| Others |
| HRD | Highway Research and Development
| Others |
| HRD | Hindu Rashtra Development
| Others |
| HRD | Historical Research Development
| Others |
| HRD | Homologous Recombination Deficiency
| Others |
| HRD | Honda Racing Development
| Others |
| HRD | Hood River Distillers
| Others |
| HRD | Hoonigan Racing Division
| Others |
| HRD | Hot Rod Deluxe
| Others |
| HRD | Hot Rod Drags
| Others |
| HRD | Hot Rods of Dearborn
| Others |
| HRD | Hotel and Restaurant Development
| Others |
| HRD | Howard Raymond Davies
| Others |
| HRD | Human Readable Description
| Others |
| HRD | Human resource and development
| Others |
| HRD | Human Resource Department
| Others |
| HRD | Human Resource Development
| Others |
| HRD | Human Resource Dimensions
| Others |
| HRD | Human Resources Department
| Others |
| HRD | Human Resources Development
| Others |
| HRD | Human Resources Division
| Others |
| HRD | Hurricane Research Division
| Others |
| HRD | Hybrid Restriction Diagram
| Others |
| HRD | Hydraulic Repair and Design
| Others |
| HRD | Hydroprocessed Renewable Diesel
| Others |
| HRD | Hypoparathyroidism retardation Dysmorphism
| Others |
| HRD | Hypothetical Reference Decoder
| Others |