Agnes Jepkemboi Kiprop (born 14 January 1980) is a Kenyan long-distance runner who competes in marathon events. Initially a cross country specialist, she has focused on marathons since 2008 and has won races in Reims, Turin, Frankfurt and Prague. She holds a personal best of 2:23:54 hours for the event.
Born in Marakwet, Kenya, her international debut came as a junior runner at the 1997 IAAF World Cross Country Championships, where she was one of six Kenyan youngsters in the top ten of the junior women's race. She featured again on the team at the 1998 edition, having won the junior trials, and she came seventh to help Kenya to the team silver medal. She was the winner of the 1999 Kenyan National Cross Country Championships in Nairobi. She failed to take this domestic form to the 1999 IAAF World Cross Country Championships, however, as she was the fifth Kenyan finisher and placed 16th overall in the women's long race.
She took a career break from running in order to start a family and she had her second child in 2007. Kiprop re-emerged as an elite senior marathon runner in 2008 and claimed victory on her debut at the Reims Marathon with a time of 2:32:37 hours. She also won domestically that year, taking the Baringo Half Marathon title in December. The following April she greatly improved her marathon best with a win at the Turin Marathon, where she completed a solo run to set a 2:26:22 course record time. She took a second win in the city that year at the Turin Half Marathon in September. This served as preparation for the Frankfurt Marathon, where she posted a time of 2:26:57 hours to win the race, having almost a minute as a margin of victory over Hellen Kimutai. She defended her title in Baringo at the end of the year, completing a year-long undefeated streak.