Allen Township may refer to:
Illinois Allen Township, LaSalle County, Illinois
Indiana Allen Township, Miami County, Indiana Allen Township, Noble County, Indiana
Iowa Allen Township, Harrison County, Iowa Allen Township, Polk County, Iowa Allen Township, Warren County, Iowa
Kansas Allen Township, Jewell County, Kansas Allen Township, Kingman County, Kansas
Michigan Allen Township, Michigan
Missouri Allen Township, Worth County, Missouri
North Dakota Allen Township, Kidder County, North Dakota, in Kidder County, North Dakota
Ohio Allen Township, Darke County, Ohio Allen Township, Hancock County, Ohio Allen Township, Ottawa County, Ohio Allen Township, Union County, Ohio
Pennsylvania Allen Township, Northampton County, Pennsylvania
South Dakota Allen Township, Beadle County, South Dakota, in Beadle County, South Dakota