George Anthony Hincapie (born June 29, 1973) is an American former racing cyclist, who competed professionally between 1994 and 2012. Hincapie was a key domestique of Lance Armstrong. Hincapie was also a domestique for Alberto Contador in 2007 and for Cadel Evans in 2011, when both men won the Tour de France. He was the owner and general manager of UCI Professional Continental team Hincapie–Leomo p/b BMC until it folded at the end of the 2020 season. In 2025, Hincapie formed Modern Adventure Pro Cycling alongside his brother Richard.

On October 10, 2012, Hincapie released a statement on his website acknowledging the use of performance-enhancing drugs and confirming that he had been approached by US federal investigators and USADA about his experiences with doping. Later that day a statement was released confirming his acceptance of a six-month ban from September 1, 2012, ending on March 1, 2013, along with a stripping of all race results between May 31, 2004, and July 31, 2006.

Hincapie started a record 17 Tours, however, after his doping admission he was retroactively disqualified from the 2004, 2005 and 2006 Tours. The only Tour he started but did not finish was his first. He completed his 16th and final Tour in 2012, which tied Joop Zoetemelk's record of completed Tours. However, following the outcome of the Armstrong investigation, the record reverted to Zoetemelk. He also rode at five consecutive Olympic Games between 1992 and 2008.