|Elevation||487 m (1,598 ft)|
|Time zone||Central (CST) (UTC-6)|
|• Summer (DST)||CDT (UTC-5)|
|GNIS feature ID||454138|
Allendorf is an unincorporated community in Osceola County, Iowa, United States. It is located on Highway 59, five miles east of Sibley, at 43.413270N, -95.64318W, adjacent to the Johnson Wilderness Area.
Allendorf was founded in 1895, possibly named after a town named Allendorf in Germany; the town was originally named Oliver.