Nancy Jepkosgei Kiprop is a Kenyan marathon runner, born on July 7, 1979, who won the Vienna City Marathon three years in a row from 2017 to 2019 and became the first woman to win three consecutive titles there. Her personal best of 2:22:12, run in Vienna on April 7, 2019, is the course record.
Kiprop stepped away from professional running in the 2000s to attend Tambach Teachers College before returning to the sport. She made her marathon debut in Valencia in 2015, finishing second in 2:27:34. Her Vienna wins came in 2:24:20 in 2017, 2:24:18 in 2018 and 2:22:12 in 2019, each a personal best at the time.
She finished fourth at the New York City Marathon in November 2019 in 2:26:21. Kiprop has said she used her Vienna prize money to support her seven children, five of whom are adopted.