Kimberlyn Duncan (born August 2, 1991) is an American track and field athlete, specializing in the sprints.

[2] Duncan was a standout athlete at Cypress Springs High School near her hometown in Katy, Texas, graduating in 2009.

She won the Honda Sports Award as the nation's best female track and field competitor in 2011 and repeated in 2012.

[4][5] At the 2012 NACAC Under-23 Championships in Athletics she again won the 200 meters in record time and anchored the victorious USA 4x100 metres relay team.

[6] At 2014 USA Outdoor Track and Field Championships, Duncan earned silver medal in the 200 meters.