Portage Township may refer to:
Indiana Portage Township, Porter County, Indiana Portage Township, St. Joseph County, Indiana
Michigan Portage Charter Township, Michigan, in Houghton County Portage Township, Kalamazoo County, Michigan, now the city of Portage Portage Township, Mackinac County, Michigan
Minnesota Portage Township, St. Louis County, Minnesota
Missouri Portage Township, New Madrid County, Missouri
Ohio Portage Township, Hancock County, Ohio Portage Township, Ottawa County, Ohio Portage Township, Summit County, Ohio, defunct Portage Township, Wood County, Ohio
Pennsylvania Portage Township, Cambria County, Pennsylvania Portage Township, Cameron County, Pennsylvania Portage Township, Potter County, Pennsylvania
South Dakota Portage Township, Brown County, South Dakota, in Brown County, South Dakota