Far more friendly and open than similar one-syllable names like Kent, Kurt, and Karl, it's been associated for more than half a century with actor Kirk Douglas, whose birth name was Issur Danielovitch Demsky.
CaptainJamesTiberius Kirk, main character in the Star Trek series
Kirk Kettner, character in movie "She's Out Of My League"
Kirk Gleason, character on TV's "Gilmore Girls"
Kirk Lazarus, character in film "Tropic Thunder"
Kirk Sutherland, character on British soap "Coronation Street"
Kirk Van Houten, Milhouse's dad on TV's "The Simpsons"