Floyd Landis is an American former professional road racing cyclist. At the 2006 Tour de France, he would have been the third non-European winner in the event's history, but was disqualified after testing positive for performance-enhancing drugs. The competition was ultimately won by Óscar Pereiro.

The 2006 Tour de France was the 93rd edition of the Tour de France, one of cycling's Grand Tours. It took place between the 1st and the 23rd of July. It was won by Óscar Pereiro following the disqualification of Floyd Landis. Due to the United States Anti-Doping Agency announcing on August 24, 2012, that they had disqualified Lance Armstrong, a former teammate of Landis, from all of his results since August 1, 1998, including his seven Tour de France titles from 1999 to 2005, this is also the first Tour to have an overall winner since 1998. By terms of margin of victory the 2006 Tour was the 3rd closest of all time.