RHC

The acronym RHC may refer to:


 * Relativistic heat conduction
 * The Black Watch (Royal Highland Regiment) of Canada
 * Radio Havana Cuba
 * Recueil des Historiens des Croisades, a major collection of medieval primary source documents about the Crusades
 * Receding Horizon Control, another name for Model predictive control
 * Red Hand Commandos, a Loyalist paramilitary group in Northern Ireland
 * Rosehill College, a school in South Auckland
 * Rural health clinic
 * C-scale of the Rockwell hardness scale
 * The Royal Hashemite Court
 * Royal Holloway College, University of London