Portage Lake may refer to:
Communities in the United States Portage Lake, Maine Portage Lakes, Ohio
Lakes in the United States Portage Lake (Alaska) Portage Lake (Maine) Portage Lake (Keweenaw), in the Keweenaw Peninsula of Michigan Portage Lake (Michigan), in Manistee County, Michigan Portage Lake (Aitkin County, Minnesota) Portage Lake (Hubbard County, Minnesota) Portage Lake (Otter Tail County, Minnesota) Portage Lake County Park, in Jackson County, Michigan Portage Lakes, a group of lakes in Ohio Lake Margrethe in Crawford County, Michigan, formerly known as Portage Lake