Cedar Township is a township in Jackson County, Kansas, United States. As of the 2000 census, its population was 1,254.
The first permanent white settlement in Cedar Township was in 1855.
Cedar Township covers an area of 39.94 square miles (103.44 square kilometers); of this, 0.01 square miles (0.04 square kilometers) or 0.04 percent is water. The stream of Morgan Creek runs through this township.
The township contains three cemeteries: Cedar Grove, South Cedar and South Denison.