The term regional county municipality or RCM (French: municipalité régionale de comté, pronounced [mynisipalite ʁeʒjɔnal də kɔ̃te], MRC) is used in Quebec, Canada, to refer to one of 87 county-like political entities. In some older English translations they were called county regional municipality.
Regional county municipalities are a supralocal type of regional municipality, and act as the local municipality in unorganized territories within their borders. The system of regional county municipalities was introduced beginning in 1979 to replace the historic counties of Quebec. In most cases, the territory of an RCM corresponds to that of a census division; however, there are a few exceptions.