Colleen Lanne' (born August 18, 1979) is a female freestyleswimmer from the United States, who earned a silver medal at the 2004 Summer Olympics, swimming the prelims of the 4x100m free relay. She qualified for the 2004 USA Olympic Team in the 100m free after finishing sixth at the Olympic Trials.
A native of Tucson, Arizona she won a silver in the 200m freestyle as well as golds in the 4x100m and 4x200m free relays at the 2003 Pan American Games. In 2002 Lanne' was a silver medalist in the 4x200m free relay at the Short Course World Championships.
^Colleen's last name is spelled Lanne' or Lanné, though she went by the former in meets (with the apostrophe rather than the accented "e") due to a systemic problem which prevented the "é" character's use.