Wayne Township is a township in Buchanan County, Missouri, United States. At the 2020 census, its population was 652.
Wayne Township was established in 1842.
Wayne Township covers an area of and contains no incorporated settlements. It contains two cemeteries: Bethel and Kerlin.
Horseshoe Lake, Muskrat Lake, New Mud Lake and Old Mud Lake are within this township. The stream of Contrary Creek runs through this township.