Tyson Gay (born August 9, 1982 in Lexington, Kentucky) is a retired American track and field sprinter who competed in the 100 and 200 meters. His 100 meter personal best of 9.69 seconds is the American record and makes him tied for the second fastest athlete over 100 meters ever, along with Yohan Blake of Jamaica.

Gay has won medals in many major international competitions, which includes 3 gold medals in the 100 meter, 200 meter and 4 × 100 meter relay at the 2007 Osaka World Championships. This made him the second man to win all three events at the same World Championships, after Maurice Greene (Usain Bolt duplicated the feat two years later). Gay is a four-time U.S. champion in the 100 meter.

At the 2008 Olympic Trials, he ran a wind assisted 9.68 seconds in the 100 meter. Days later, he suffered a severe hamstring injury in the 200 meter trials and did not win any medals at the Beijing Olympics. He clocked 9.71 seconds to win the 100 meter silver medal in the 2009 World Championships — it is the fastest non-winning time in the history of the 100 meter.

Gay is a two-time winner of the Jesse Owens Award, was the 2007 IAAF World Athlete of the Year, won Best Track and Field Athlete for Track & Field News in 2007 and for ESPY Award in 2008 and 2011. He has also achieved multiple Men's season's best performances in the 100 meter and 200 meter.