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