A commemorative stamp honoring Brien McMahon and his role in opening the way to peaceful uses of atomic energy was issued by the United States on July 28, 1962 at Norwalk, Connecticut. The stamp features a portrait of McMahon facing a rendition of an atomic symbol. Brien McMahon High School, in Norwalk, is named after him. Brien McMahon Hall, a residence hall at the University of Connecticut in Storrs, also bears his name. Footage of McMahon is included in the 1982 documentary "The Atomic Cafe" giving a speech urging a reasoned response to the acquisition of atomic weapons contrasting with the more McCarthyite speeches of Republican Senators Owen Brewster, Richard Nixon and Democratic Representative Lloyd Bentsen.