RCB

RCB may stand for:


 * R Coronae Borealis variable, a type of star
 * Ràdio Ciutat de Badalona, Barcelona, Spain
 * RCB Bank, Cyprus
 * A protein involved in chloroplast biogenesis
 * Regional Centre for Biotechnology, India
 * Regular Commissions Board, later the British Army Officer Selection Board
 * Richards Bay Airport IATA code
 * River City Brass, a brass band based in Pittsburgh
 * Roberto Carballés Baena, a Spanish tennis player
 * Royal Challengers Bengaluru, an Indian IPL franchise