RCU

RCU may refer to:

Science and technology

 * Read-copy-update, a computer operating system synchronization mechanism
 * Remote concentrator unit in telephony
 * Organocopper complexes (RCu), in reactions of organocopper reagents

Organizations

 * Radio Club Uruguayo
 * Rogue Credit Union, a federal credit union in Medford, Oregon
 * Royal College Union, the alumni association of Royal College Colombo, Sri Lanka
 * Regional Cadet Units of the Australian Army Cadets
 * Regional Coordinating Unit in the Northwest Pacific Action Plan
 * Regional Crime Unit of the Hong Kong Police Force

Other uses

 * Rocket City United, an American soccer team
 * RC Unterföhring, a German rugby union club
 * Las Higueras Airport (IATA code), Argentina
 * A remote control unit