John Drake Hoffman (November 26, 1922 – February 21, 2004) was an American chemist and author who was awarded the Soldier's Medal, the United States Army's highest award for an act of valor in a non-combat situation, and the only one awarded to a member of the Manhattan District. After the war he worked for the National Bureau of Standards, becoming the director of its national measurements laboratory. He was a professor and director of the engineering materials program at the University of Maryland from 1982 to 1985, director of the Michigan Molecular Institute, and a professor of materials science and engineering at Johns Hopkins University.