Date of Birth: 
About Irene Jerotich Kosgei
- Irene Jerotich Kosgei (born 8 September 1974) is a Kenyan long-distance runner who specialises in the marathon.
- Her first victory over the distance came at the Nairobi Marathon in 2006 and she won the race again in 2010 with a course record and personal best time of 2:28:47.
- She became the first Kenyan woman to win the Commonwealth marathon title at the 2010 Commonwealth Games in New Delhi. Among her other achievements on the road, she won the 2005 Baringo 15K, the Tiberias Marathon in 2010 and has also finished top three at the Ottawa Marathon and Reims Marathon.
- She is a three-time winner of the Singapore Marathon
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