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