Kaillie Humphries (born Kaillie Simundson September 4, 1985) is a bobsledder who competes for the United States.
Representing Canada, Humphries was the Olympic champion in the two-woman at the 2010 Winter Olympics and the 2014 Winter Olympics.
Earning Olympic Bronze in 2018 with Breakman Phylicia George.
With her victory in 2014 she became the first female bobsledder to defend her Olympic title.
Due to her repeat championship she was named flagbearer for the closing ceremonies at the 2014 Games together with brakewoman Heather Moyse.
Humphries is also the two-time defending overall World Cup champion.
To date she is the most successful Canadian Bobsledder in History.
In 2014 Humphries and Elana Meyers became the first women to pilot a mixed-gender team in the first international four-man bobsleigh competition to allow women to compete with/against men.
Humphries received the 2014 Lou Marsh Award, given annually to Canada's top athlete.
On January 9, 2016, Humphries became the first woman to drive an all-female team against men in a four-person World Cup bobsled race; her teammates were Cynthia Appiah, Genevieve Thibault and Melissa Lotholz.