Greenfield Township may refer to:
Arkansas
Greenfield Township, Craighead County, Arkansas, in Craighead County, Arkansas
Greenfield Township, Monroe County, Arkansas, in Monroe County, Arkansas
Greenfield Township, Poinsett County, Arkansas, in Poinsett County, Arkansas
Illinois
Greenfield Township, Grundy County, Illinois
Indiana
Greenfield Township, LaGrange County, Indiana
Greenfield Township, Orange County, Indiana
Iowa
Greenfield Township, Adair County, Iowa
Greenfield Township, Calhoun County, Iowa
Greenfield Township, Jones County, Iowa
Greenfield Township, Warren County, Iowa
Kansas
Greenfield Township, Elk County, Kansas
Michigan
Greenfield Township, Michigan, defunct
Minnesota
Greenfield Township, Minnesota
North Dakota
Greenfield Township, Griggs County, North Dakota, in Griggs County, North Dakota
Greenfield Township, Traill County, North Dakota, in Traill County, North Dakota
Ohio
Greenfield Township, Fairfield County, Ohio
Greenfield Township, Gallia County, Ohio
Greenfield Township, Huron County, Ohio
Pennsylvania
Greenfield Township, Blair County, Pennsylvania
Greenfield Township, Erie County, Pennsylvania
Greenfield Township, Lackawanna County, Pennsylvania
South Dakota
Greenfield Township, Brown County, South Dakota, in Brown County, South Dakota