Caroline Cheptanui Kilel (born 21 March 1981) is a Kenyan long-distance runner who specializes in road running competitions.

[1][5] In 2009, she was third at the BIG 25 Berlin race and attended the 2009 IAAF World Half Marathon Championships in Birmingham, England.

She just missed out on the podium, finishing fourth, although she had managed to set a personal best of 1:08:16 as well as help Kenya to the team gold.

[8] That October she had her biggest win on the circuit, taking the women's title at the Frankfurt Marathon in a new course record and personal best of 2:23:25 hours, defeating Dire Tune by 19 seconds.

[9] She competed in numerous other events that year, including wins at the 20 kilomètres de Maroilles, Zwolle Half Marathon and Great Scottish Run.

[10] In September she came third in a Kenyan sweep of the Portugal Half Marathon, behind Mary Keitany and Helena Kirop.