RC, rc or R/C can mean:

• the IATA code for Atlantic Airways
• radio control typically as in remote control vehicles
• the rc shell is the default command interpreter in the Plan 9 operating system
• the reflection coefficient of a circuit
• a release candidate in software engineering
• Remand Centre , a prison holding people awaiting trial
• remote control typically as in home entertainment devices,
• a resistance/capacitance circuit in electronics
• Revenue Commissioners, Ireland
• Roanoke College a private college in Salem, Virginia
• Roman Catholic
• Royal Commission
• Royal Crown cola
• Rosslyn Connecting Railroad
• a filename extension for configuration files in UNIX-like environments. The letters are an abbreviation for "run commands".