| ORDP | Office of Retirement and Disability Policy 
| Others |
| ORDP | Office of Rural Development Policy
| Others |
| ORDP | Officer Recuitment Diversity Program
| Others |
| ORDP | Offshore Renewable Development Programme
| Others |
| ORDP | Ohio Rural Development Partnership
| Others |
| ORDP | Open Road Driver Program
| Others |
| ORDP | Open Road Drivers Plan
| Others |
| ORDP | Operations Rotational Development Program
| Others |
| ORDP | Orange River Development Project, South Africa
| Others |
| ORDP | United States Army ORDnance Corps Pamphlet
| Others |
| ORDP | USAF Officer Recruiting Diversity Program
| Others |