Even though in the past Clyde may have been identified as half of the infamous outlaw duo with partner Bonnie Parker--especially after the 1967 movie in which he was played by Warren Beatty-- Clyde has always had an element of jazzy cool that could overcome all the rest.
The name relates to the River Clyde that runs through the city of Glasgow. It was a Top 100 name in the US through the 1930s, and has made a comeback in the last few years.
Clyde Griffiths was the doomed protaganist of Theodore Dreiser's novel An American Tragedy--though his name was changed to George in the film. In the field of sports, basketball Hall of Famer--and later "Dancing With the Stars" participant-- Clyde Drexler was known as Clyde the Glide, and Walt Frazier's nickname was Clyde. Catherine Keener and Dermot Mulroney have a son named Clyde.