Gettysburg Township is a township in Graham County, Kansas, USA. As of the 2000 census, its population was 83.
Gettysburg Township covers an area of 87.75 square miles (227.3 km2) and contains no incorporated settlements. According to the USGS, it contains two cemeteries: Anderson and Rock Creek.
The streams of Antelope Creek, Keys Creek, Rock Creek and Youngs Creek run through this township.