Fort Clark was a frontier fort located just off U.S. Route 90 near Bracketville, in the county of Kinney, in the U.S. state of Texas. It later became the headquarters for the 2nd Cavalry Division. The Fort Clark Historic District was added to the National Register of Historic Places listings in Kinney County, Texas on December 6, 1979. The Commanding Officer's Quarters at Fort Clark was designated a Recorded Texas Historic Landmark in 1988. The Fort Clark Guardhouse became a Recorded Texas Historic Landmark in 1962. The Fort Clark Officers' Row Quarters was designated a Recorded Texas Historic Landmark in 1991.