Francisco "Frankie" Andreu (born September 26, 1966) is an American former professional cyclist whose career highlights include riding as team captain of the U.S. Postal Service cycling team in 1998, 1999 and 2000. During his career, he won a number of race stages and finished fourth in the cycling road race at the 1996 Olympics. His testimony played a key part in the United States Anti-Doping Agency's investigation of fellow U.S. Postal cyclist Lance Armstrong's doping practices.