RCA
- Japan Electronic Industries Development Association
- RCA (trademark)
- RCA Camden
- RCA Corporation
- RCA Dome
- RCA Records
- RCA Red Seal Records
- RCA Studio B
- RCA Studio II
- RCA Victrola
- RCA clean
- RCA connector
- RCA/Jive Label Group
- RCCA (disambiguation)
- Rabbinical Council of America
- Racing Club Abidjan
- Racing Club Aruba
- Radio Club Argentino
- Raed Club Arbaâ
- Rail Cargo Austria
- Raja Club Athletic
- Rajasthan Cricket Association
- Raleigh Christian Academy
- Reformed Church in America
- Resource consumption accounting
- Revealed comparative advantage
- Reverse mathematics
- Revolutionary Communists of America
- Right coronary artery
- Riot control agent
- Ripple-carry adder
- Rolling circle amplification
- Root cause analysis
- Rowing Canada Aviron
- Royal Cambrian Academy of Art
- Royal Canadian Academy of Arts
- Royal City Avenue
- Royal College of Art
- Royal Regiment of Canadian Artillery
- Rwanda Cricket Association