John S. Bowers House is a historic home located at Decatur, Adams County, Indiana. It was built about 1900–1905, and is a three-story, Queen Anne style frame dwelling with 14 rooms. It sits on a stone foundation. It features stained glass and lead crystal windows and wraparound porch with Tuscan order columns. It was built by John S. Bowers, who owned a local quarry. It was listed on the National Register of Historic Places in 1979.