Haley Kalil photographed by Yu Tsai in Kenya for Sports Illustrated Swimsuit 2019

Haley Baylee Kalil (née O'Brien; born August 6, 1992) is an American model and former beauty pageant titleholder. In 2018, Kalil was featured in the Sports Illustrated Swimsuit Issue as a contestant in the 2018 Sports Illustrated Swimsuit Model Search. As one of the two winners of the competition alongside Camille Kostek, she appeared again in the 2019 edition as a rookie.

Prior to her career as a model, Kalil competed in beauty pageants. As a teenager, she was crowned Miss Minnesota Teen USA 2010 and later competed in Miss Teen USA 2010. Afterwards, Kalil was crowned Miss Minnesota USA 2014 and placed in the top twenty at Miss USA 2014.