The Royal Canadian Mounted Police (RCMP; French: Gendarmerie royale du Canada; GRC), commonly known in English as the Mounties (and colloquially in French as la police montée) is the federal and national police service of Canada. As police services are the constitutional responsibility of provinces and territories of Canada, the RCMP's primary responsibility is the enforcement of federal criminal law, and sworn members of the RCMP have jurisdiction as a peace officer in all provinces and territories of Canada. However, the service also provides police services under contract to eight of Canada's provinces (all except Ontario and Quebec), all three of Canada's territories, more than 150 municipalities, and 600 Indigenous communities. In addition to enforcing federal legislation and delivering local police services under contract, the RCMP is responsible for border integrity; overseeing Canadian peacekeeping missions involving police; managing the Canadian Firearms Program, which licenses and registers firearms and their owners; and the Canadian Police College, which provides police training to Canadian and international police services.

The Royal Canadian Mounted Police was established in 1920 with the amalgamation of the Royal North-West Mounted Police and the Dominion Police. The RCMP has long enjoyed an international cultural influence, appearing in films, television shows, and books since its formation in the early 20th century. The Government of Canada considers the RCMP to be an unofficial national symbol, and in 2013, 87 per cent of Canadians interviewed by Statistics Canada said that the RCMP was important to their national identity. However, the service has faced criticism for its broad mandate, and its public perception in Canada has gradually soured since the 1990s, worn down by workplace culture lawsuits, several high-profile scandals, staffing shortages, and the service's handling of incidents like the 2020 Nova Scotia attacks.

The two most populous provinces, Ontario and Quebec, operate independent provincial police services, which, like the RCMP, are responsible for some provincial law enforcement and providing local police services under contract. The other eight provinces and all three territories contract at least some policing responsibilities to the RCMP, which provides front-line policing in those provinces under the direction of the provincial governments. Municipalities, which are responsible for police services in every province except Newfoundland and Labrador, can contract for RCMP services through their provincial government, or by direct contracts. Thus, the RCMP provides police services at the federal, provincial, and municipal level. In some areas of Canada, it is the only police service.