Carlos Clark Van Leer (October 15, 1865 – November 3, 1953) was an American military officer who served in the United States Army during the Spanish-American War and as Chief of the Personnel Classification Board in the United States Department of the Treasury.

His son Anthony Wayne Van Leer also had a long prominent military career as an officer in the Navy.

[5][3][6] His son Carlos graduated from Yale University and served as an officer during multiple wars.

He served in the Spanish–American War and returned home to work as a government official running the treasury branch in Tennessee[8] Van Leer served as the assistant director for the Office of Management and Budget and later worked as the Chief of the Personnel Classification Board in the United States Department of the Treasury.

[4] Van Leer died on November 3, 1953, and was interred at Arlington National Cemetery.