| OHRD | Office of Health Research and Development 
| Others |
| OHRD | Office of Human Resource Development
| Others |
| OHRD | Office of Human Resources and Development
| Others |
| OHRD | Ontario Hydro Research Division
| Others |
| OHRD | Organization and Human Resource Development
| Others |
| OHRD | Organization and Human Resources Development
| Others |
| OHRD | Organization of Human Resource Development
| Others |
| OHRD | Organizational and Human Resource Development
| Others |