| Research and Publication Department | Academic & Science |
| Revenue Processing Division | Accounts and Finance |
| Repaid | Accounts and Finance |
| Remanufactured Products Division | Business |
| Dispatch Management Services Corporation | Business |
| Random Productivity Derailing | Business |
| Rickabaugh Pentecost Development | Community |
| Rite of Parental Divination | Community |
| Residential Planned Development | Community |
| Rockford Park District | Community |
| Recreation and Park Department | Community |
| Rapidfile Database | Computing |
| Remote Printer Despooler | Computing |
| Recursive Per Domain | Computing |
| RIB Project Database | Computing |
| Rapid | Computing |
| Rapids | Cryptocurrency |
| Database (rapidfile) | File Type |
| Rapide | General |
| Radiation Protection Dosimetry | General |
| Renewable Power Direct | General |
| Rockets Power Dancers | General |
| Remote Presence Device | General |
| Relative Percent Difference | General |
| Residual Prediction Deviation | General |
| Rural Philanthropy Days | General |
| Ruchnoy Pulemyot Degtyareva | General |
| Rite of Parent Divination | General |
| Recognition Primed Decision | General |
| Relative Power Difference | General |
| Racoon Police Department | General |
| Repunched Date | General |
| Ruchnoy Pulemet Degtyarova | General |
| Rate of Perceived Dyspnea | General |
| Relic Per Day | General |
| Remote PHY Devices | General |
| Return Path Data | General |
| Remote Power Distribution | General |
| Return Path Demodulator | General |
| Rope Position Detection | General |
| Request for Production of Documents | General |
| Rolling Paper Depot | General |
| Raw Paleolithic Diet | General |
| Reverse Phone Directory | General |
| Relative Percent Deviation | General |
| Road Profile Detection | General |
| Remote Prnd Display | General |
| Roll-Over Protection Device | General |
| Reconfigurable Performance Display | General |
| Ruchnoy Pulemyot Degtyaryova | Governmental |
| Riverside Police Department | Governmental |
| Rochester Police Department's | Governmental |
| Raleigh Police Department | Governmental |
| Reno Police Department | Governmental |
| Redding Police Department | Governmental |
| Reach Per Dollar | Governmental |
| Raccoon Police Department | Governmental |
| Richmond Police Department | Governmental |
| Rochester Police Department | Governmental |
| Road Policing Department | Governmental |
| Rockville Police Department | Governmental |
| Rockport Police Department | Governmental |
| RUPAUND | Indian Railway Station |
| Respuestas a Preguntas Dificiles | International |
| Retrieval and Punishment Department | Internet |
| Removable Partial Denture | Medical |
| Renal Pelvic Diameter | Medical |
| Right Posterior Descending | Medical |
| Rare Pediatric Disease | Medical |
| Rehabilitation Programs Division | Medical |
| Random Pavarotti Disease | Medical |
| Russian Pulsejet Document | Military and Defence |
| Rapid Prototyping Development | Military and Defence |
| Reactor Physics Division | Physics Related |
| Recurrent Pattern Detection | Softwares |
| Racing Product Division | Sports |
