Robert Collins Hoffman (November 9, 1898 – July 18, 1985) was an American entrepreneur who rose to prominence as the owner of York Barbell. He founded magazines such as Muscular Development and Strength & Health, and was the manufacturer of a line of bodybuilding supplements. Hoffman promoted bodybuilders like John Grimek and Sigmund Klein, coached the American Olympic Weightlifting Team between 1936 and 1968, and was a founding member of the President's Council on Physical Fitness and Sports.