Charles Archibald Hahn (September 14, 1880 – January 21, 1955) was an American track athlete and is widely regarded as one of the best sprinters of the early 20th century.

[1] Having won sprint events at the 1903 American and Canadian championships, Hahn— born in Dodgeville, Wisconsin,[2] but running for the University of Michigan[2]— was among the favorites at the 1904 Olympic Games in St. Louis, which was poorly attended by European athletes.

In the first event at those Games, the 60 m, Hahn benefited from his quick start and won, making him a favorite for the remaining events he was entered in, the 100 m and 200 m. His run in the 200 m final delivered him the gold and a good time, although the latter was flattered, because the race was run on a straight course.

In 1906, the "Milwaukee Meteor" repeated his Olympic 100 m victory in Athens,[2] a feat not equaled until 1988, when Carl Lewis won the 100 m twice in a row (after the disqualification of Ben Johnson).

In 1929 Hahn's book "How to Sprint" was issued by the Spalding Athletic Library.