| RCDC | Pingtung South, Taiwan 
| Others |
| RCDC | Raffles College of Design and Commerce
| Others |
| RCDC | Ranken Community Development Corporation
| Others |
| RCDC | Reception Classification Diagnostic Center
| Others |
| RCDC | Regional Center for Development Cooperation
| Others |
| RCDC | Regional Centre for Development Cooperation
| Others |
| RCDC | Regional Chronic Disease Coalition
| Others |
| RCDC | Reinforced Concrete Design and Calculations
| Others |
| RCDC | Research Condition and Disease Categorization
| Others |
| RCDC | Resource control display configuration
| Others |
| RCDC | Richland County Development Corporation
| Others |
| RCDC | Riverside Community Diabetes Collaborative
| Others |
| RCDC | Road Construction and Development Corporation
| Others |
| RCDC | Robot Chicken DC Comics
| Others |
| RCDC | Rock City Dance Center
| Others |
| RCDC | Rose City Discussion Club
| Others |
| RCDC | Roseville Community Development Corporation
| Others |
| RCDC | Royal Canadian Dental Corps
| Others |
| RCDC | Royal College of Dentists of Canada
| Others |
| RCDC | Russell Child Development Center
| Others |