McDowell Township is one of twenty-five townships in Barry County, Missouri, United States. In the 1890s, McDowell mined and extracted lead and jack ore. As of the 2000 census, its population was 275.
McDowell Township covers an area of and contains no incorporated settlements.
The streams of Brights Spring, Calton Creek, Gunter Creek, Little Flat Creek, Stansberry Creek and Willow Branch run through this township.