Portland Township may refer to:
Canada
edit- Portland Township, now part of South Frontenac, Ontario
United States
edit- Portland Township, Ashley County, Arkansas, in Ashley County, Arkansas
- Portland Township, Whiteside County, Illinois
- Portland Township, Cerro Gordo County, Iowa
- Portland Township, Kossuth County, Iowa
- Portland Township, Plymouth County, Iowa
- Portland Township, Michigan
- Portland Township, Deuel County, South Dakota, in Deuel County, South Dakota