Brown Township is one of twelve townships in Hendricks County, Indiana, United States. As of the 2010 census, its population was 11,593.
Brown Township was named for James Brown, a pioneer settler.
Brown Township covers an area of ; of this, or 0.12 percent is water. The stream of Pump Run flows through this township.
The township contains eight cemeteries: Ballard, Bethesda, Evans, Johnson, Macedonia, Marvel, Smith-Shepherd and Sparks.
It is within the Brownsburg Community School Corporation.
Brown Township residents may obtain a free library card from the Brownsburg Public Library in Brownsburg.