Lake Doré is a freshwater lake in the township of North Algona-Wilberforce, Renfrew County, Ontario, Canada, about 6 kilometres (3.7 mi) north of the community of Eganville in the neighbouring township of Bonnechere Valley.

Ontario Highway 41 travels along the south shore of the lake.

Lake Dore provides cottagers with ample opportunities for recreational boating and fishing.

[1] Mac Beattie, the first inductee to the Ottawa Valley Country Music Hall of Fame,[2] composed the song "Lake Doré Waltz" in the years after WWII.

The song was performed with his band, "Mac Beattie And The Ottawa Valley Melodiers".