Allen

Allen may refer to:

A County

 * Allen County, Indiana
 * Allen County, Kansas
 * Allen County, Kentucky
 * Allen Parish, Louisiana
 * Allen County, Ohio

A Township

 * Allen Township, Miami, Indiana
 * Allen Township, Polk, Iowa
 * Allen Township, Hillsdale, Michigan
 * Allen Township, Ottawa, Ohio
 * Allen Township, Union, Ohio
 * Allen Township, Centre, Pennsylvania, settled about 1791; incorporated Aug. 1814 from Spring Township as Allen Township; name changed in 1815 to Boggs Township.
 * Allen Township, Northampton, Pennsylvania

A Populated Place

 * Allen, Amador, California
 * Allen, Lyon, Kansas
 * Allen, Floyd, Kentucky
 * Allen, Natchitoches, Louisiana
 * Allen, Wicomico, Maryland
 * Allen, Hillsdale, Michigan
 * Allen, Dixon, Nebraska
 * Allen, Allegany, New York
 * Allen, Pontotoc, Oklahoma
 * Allen, Cumberland, Pennsylvania
 * Allen, Northampton, Pennsylvania
 * Allen, Bennett, South Dakota
 * Allen, Collin, Texas

Argentina

 * Allen, Río Negro, Argentina

Australia

 * Allen's Creek, Queensland, Australia

Ireland

 * Allen, Kilmeage, Kildare, Ireland

Philippines

 * Allen, Northern Samar, Philippines

United Kingdom

 * Allen (townland), Desertceat, Tyrone, Northern Ireland
 * Allen, Cornwall, England
 * River Allen, in Dorset, England
 * River Allen, in Northumberland, England, a tributary of the River South Tyne