Clark Fork Township is one of fourteen townships in Cooper County, Missouri, USA. As of the 2000 census, its population was 598.
Clark Fork Township was named after the creek of the same name within its borders.
According to the United States Census Bureau, Clark Fork Township covers an area of 52.64 square miles (136.32 square kilometers); of this, 52.6 square miles (136.24 square kilometers, 99.94 percent) is land and 0.03 square miles (0.08 square kilometers, 0.06 percent) is water.
The township contains these two cemeteries: McCullough and Toler.