| Acronym | Meaning |
| RCA | Remote Control Amplifier |
| RCAG | Remote Center Air-Ground |
| RCAG | Remote Control Air-Ground |
| RCB | Remote Circuit Breaker |
| RCC | Range Commanders Council (DOD) |
| RCC | Range Control Center |
| RCC | Reinforced Carbon-Carbon |
| RCC | Reinforced Carbon-carbon |
| RCC | Reusable Carbon-Carbon |
| RCC | RoLigh Combustion Cutoff |
| RCCA | Rough Combustion Cutoff Assembly |
| RCCB | Remote Control Circuit Breaker |
| RCCP | Recorder And Communications Control Panel |
| RCD | Record |
| RCDP | Record Parallel |
| RCDR | Recorder |
| RCHCS | Regenerable CO And Humidity Contro SYstem |
| RCN | Requirements Change Notice |
| RCP | Radiation Constraints Panel |
| RCP | Right Circular Polarization |
| RCP | Right Circular Polarizer |
| RCPT | Receipt |
| RCPT | Receptacle |
| RCR | Retrofit Configuration Record |
| RCS | Reaction Control System |
| RCS | Reaction Control System (Subsystem) |
| RCSC | Reaction Control Subsystem Controller |
| RCU | Remote Control Unit |
| RCV | Receive |
| RCVR | Receiver |
| RCVS | Remote Control Video Switch |
| RCVY | Recovery |
| RCY | Recovery |
| RCY | Remaining CYcles |
| RD | Radiation Detection |
| RD | Reference Designator |
| RD | Requirements Document |
| RD | Round |
| RD/SB | Rudder Speed Brake |
| RDA | Remote Data Access |
| RDA | Resident Data Area |
| RDC | Reference Designator Code |
| RDC | Request For Document Change |
| RDCS | Reconfiguration Data Collection SYstem |
| RDD | Requirements Definition Document |
| RDF | Radio Direction Finder |
| RDF | Resource Data File |
| RDM | Real-Time Data Manager |
| RDMTR | Radiometer |
| RDOC | Reference Designation Overflow Code |