Vaughn Olin Lang (November 10, 1927 – October 2, 2014) was an American lieutenant general in the United States Army. Lang began his service as 2LT at the Officers’ Basic Course at Ft. Monmouth, New Jersey in 1952. He served in the Radio-Radar Procurement Branch and in the European Trans-Atlantic Project. Lang was a general during the Vietnam War. Lang was born in Williamsburg, Pennsylvania.