Blue River Township is one of twelve townships in Harrison County, Indiana, United States.

As of the 2020 census, its population was 2,016 and it contained 866 housing units.

[3] The stream of Baldy Creek runs through this township.

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

The township contains four major cemeteries: Boston, Breedlove, Mount Zion and Reno.