Laurentian Hills is a municipality in Eastern Ontario, Canada, on the Ottawa River in Renfrew County.

The municipality was formed on January 1, 2000, when the United Townships of Rolph, Buchanan, Wylie and McKay and the Village of Chalk River were merged.

The prototype nuclear power plant was operational from 1962 to 1987 and has since then been shut down, awaiting permanent disposal of its radioactive nuclear components.

[3] The town comprises the communities of Chalk River, Meilleurs Bay, Moor Lake, Point Alexander, Rolphton, and Wylie.

[1] List of former mayors: An Ontario Historical Plaque in front of the School House Museum was erected by the province to commemorate the role of steamboating on the Upper Ottawa in Ontario's heritage.