The Waterloo Regional Police Service (WRPS) provides policing services for the Regional Municipality of Waterloo in Ontario, Canada, which encompasses the cities of Waterloo, Kitchener, and Cambridge, as well as the townships of North Dumfries, Wellesley, Wilmot and Woolwich. The WRPS was established in 1973, to replace the individual police departments in the region. The cities of Kitchener, Waterloo and Galt; the towns of Preston, Hespeler, Elmira and New Hamburg; the Village of Bridgeport and Waterloo Township had their own respective police department. The townships of Woolwich, Wellesley, Wilmot and North Dumfries were under the jurisdiction of the Ontario Provincial Police. In 1991 the Waterloo Regional Police Force was renamed to their current name.

Cambridge is a city in the Regional Municipality of Waterloo, Ontario, Canada, located at the confluence of the Grand and Speed rivers. The city had a population of 138,479 as of the 2021 census. Along with Kitchener and Waterloo, Cambridge is one of the three core cities of Canada's tenth-largest metropolitan area.