Robert Swan Mueller III (born August 7, 1944) is an American lawyer. He served as the sixth Director of the Federal Bureau of Investigation (FBI).
Mueller was born on August 7, 1944, in New York City, New York, the son of Alice C. (née Truesdale) and Robert Swan Mueller. His maternal great-grandfather was railroad executive William Truesdale; his ancestry includes German, Scottish, and English. Mueller grew up outside of Philadelphia, Pennsylvania. A 1962 graduate of St. Paul's School, he went on to receive an A.B. from Princeton University in 1966, where he played lacrosse, an M.A. in international relations from New York University in 1967, and a Juris Doctor from the University of Virginia School of Law in 1973.
Mueller joined the United States Marine Corps, where he served as an officer for three years, leading a rifle platoon of the 3rd Marine Division during the Vietnam War. He is a recipient of the Bronze Star, two Navy Commendation Medals, the Purple Heart and the Vietnamese Cross of Gallantry.