Allen Township is one of fourteen townships in Miami County, Indiana, United States.

As of the 2020 census, its population was 642 (down from 695 at 2010[3]) and it contained 258 housing units.

[3] (This list is based on USGS data and may include former settlements.)

(These towns are listed as "historical" by the USGS.)

The township contains these two cemeteries: Five Corners and Plainview.