Colleen Anne Lanné (born August 18, 1979) is an American former competition swimmer who represented the United States in the Olympics, FINA world championships and Pan American Games. She competed internationally in freestyle swimming events.
Lanné earned a silver medal at the 2004 Summer Olympics in Athens, by swimming the preliminary heats of the 4x100-meter free relay. She qualified for the 2004 U.S. Olympic Team in the 4x100-meter freestyle relay after finishing sixth in the 100-meter freestyle at the 2004 U.S. Olympic Trials.
A native of Tucson, Arizona, she won a silver in the 200-meter freestyle, as well as gold medals in the 4x100-meter and 4x200-meter freestyle relays at the 2003 Pan American Games. In 2002 Lanne' was a silver medalist in the 4x200-meter freestyle 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.