Jackson Township is a township in Jewell County, Kansas, United States. As of the 2000 census, its population was 123.
Jackson Township covers an area of 35.74 square miles (92.57 square kilometers); of this, 0.32 square miles (0.84 square kilometers) or 0.91 percent is water. The stream of Crosby Creek runs through this township.
The township contains one cemetery, Spring Grove Elementary School.