RCG

RCG may refer to:


 * Radio Crne Gore, a radio station in Montenegro
 * Republic of Montenegro, state preceding independent Montenegro
 * The Radio Church of God, now the Worldwide Church of God
 * XHRGC-TDT, a television station in Saltillo, Mexico, branded as RCG Televisión
 * Range Concatenation Grammar, a type of formal grammar
 * Restored Church of God
 * Revolutionary Communist Group (disambiguation), several political parties
 * Royal Cambodian Government
 * Phalaris arundinacea (reed canary grass), a species of grass