The 2nd Cavalry Division was a cavalry division of the United States Army.

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