Haldane Robert Mayer (born February 21, 1941 in Buffalo, New York) is a Senior United States Circuit Judge of the United States Court of Appeals for the Federal Circuit. Mayer was appointed to the United States Military Academy by Representative William E. Miller, and received a B.S. in 1963. Mayer served in the U.S. Army from 1963 to 1975. He was awarded the Bronze Star, Meritorious Service, and Army Commendation Medals, the Combat Infantryman Badge, Parachutist Badge, Ranger Tab, and Ranger Combat Badge for his service during the Vietnam War. He took leave from the Army to attend The College of William & Mary Law School, where he was editor-in-chief of the William and Mary Law Review. He graduated first in his class and received his J.D. in 1971.