|Competitor for Kenya|
|Gold||2013 Moscow||3000 m st.|
|Bronze||2009 Berlin||3000 m st.|
|Bronze||2011 Daegu||3000 m st.|
|Gold||2010 Delhi||3000 m st.|
|Silver||2010 Split||3000 m st.|
Milcah Chemos Cheywa (born February 24, 1986 in Bugaa, Mount Elgon District) is a runner from Kenya who specialises in 3000 metres steeplechase. She is African record holder at the distance and is the gold medalist of the 2013 World Championships in Athletics.
After schooling she went to the Kenya Police College (KPC) in Kiganjo in 2005. There she met Alex Sang and soon married. He urged her to start running, but she did not start serious training until 2008. Initially racing over 800 and 1500 metres, she finished 7th in the 800 metres at the 2008 Kenyan Olympic trials, 12 seconds behind the winner Pamela Jelimo. 
Chemos converted to steeplechase running in March 2009, after being introduced to the discipline by Richard Mateelong, the Olympic steeplechase medalist posted at KPC. She won her debut race, at the Athletics Kenya meeting in Kakamega, timing 9:54.4, and soon improved her PB to 9:22.33 at the KBC Night of Athletics meeting in Heusden-Zolder, Belgium. Competing in the 2009 World Championships, she won a bronze medal in a personal best 9:08.57, behind Marta Domínguez and Yuliya Zarudneva.
In 2010, Chemos won gold medals in the 3000 metre steeplechase at the African Championships and the Commonwealth Games, heading a Kenyan clean sweep of the medals in the latter. She also took Diamond League victories in Oslo, Rome, Eugene and London, en route to capturing the overall Diamond League title in the steeplechase. 
Chemos entered the 2011 World Championships in Daegu, South Korea as favourite for the 3000 metres steeplechase, having won all five of the Diamond League races in which she had competed prior to the championship. However, she was unable to improve upon her bronze medal of two years previous, finishing in third place, over 10 seconds behind race winner Yuliya Zaripova. Chemos subsequently lost again to Zaripova at the final Diamond League meeting of the season - the Memorial Van Damme in Brussels - but the Kenyan had already established an unbeatable lead in the Diamond Race standings and thus retained her title. 
At the start of 2012, Chemos ran at the Cross de San Sebastián and was the runner-up behind Nazareth Weldu. She began the 2012 IAAF Diamond League season in dominant fashion, winning the steeplechase in Shanghai, Eugene and Oslo. At the third of these victories, Chemos broke the African 3000 metre steeplechase record of Eunice Jepkorir, winning in a new personal best and Bislett Games record time of 9:07.14.
|2009||World Championships||Berlin, Germany||3rd||3000 m steeplechase||9:08.57|
|World Athletics Final||Thessaloniki, Greece||2nd||3000 m steeplechase||9:20.19|
|2010||African Championships||Nairobi, Kenya||1st||3000 m steeplechase||9:32.18 CR|
|Continental Cup||Split, Croatia||2nd||3000 m steeplechase||9:25.84|
|Commonwealth Games||New Delhi, India||1st||3000 m steeplechase||9:40.96|
|2011||World Championships||Daegu, South Korea||3rd||3000 m steeplechase||9:17.16|
|2012||Olympic Games||London, England||4th||3000 m steeplechase||9:09.88|
|2013||World Championships||Moscow, Russia||1st||3000 m steeplechase||9:11.65|
|1500 metres||4:12.30||Nairobi, Kenya||6 June 2009|
|3000 metres||8:43.92||Zagreb, Croatia||31 August 2009|
|3000 m steeplechase||9:07.14||Oslo, Norway||7 June 2012|
- All information taken from IAAF profile.
- Wokabi, James; Mutuota, Mutwiri. "IAAF Focus on Athletes Biography". International Association of Athletics Federations. Retrieved June 6, 2013.
- "Milcah Chemos Cheywa Bio, Stats and Results". Sports Reference LLC. Retrieved June 6, 2013.
- Daily Nation, August 25, 2009: Milcah, fresh from New KCC
- The Standard, August 13, 2009: Introducing Milka
- Athletics Kenya: 2008 Olympic trials results
- IAAF: 2009 World Championships, 3000 metres steeplechase women final
- Mike Rowbottom (2010-10-10). Two more gold for Kenya, Adams dominates Shot Put. IAAF. Retrieved on 2011-11-11.
- IAAF (2010-11-10). 2010 Athletes of the Year - and the female finalists are.... Retrieved on 2011-11-11.
- Bob Ramsak (2011-08-30). Daegu 2011 – Expected Highlights - Day Four, 30 August.
- Bob Ramsak (2011-08-30). Daegu 2011 - Day 4 SUMMARY - 30 August.
- Mike Rowbottom (2011-09-16). Blake upstages the world in Brussels.
- Mike Kigen y Nazareth Weldu ganan sobre el barro en San Sebastián. Terra (2012-01-29). Retrieved on 2012-01-31.
- Mutwiri Mutuota and IAAF (2012-06-08). Chemos re-writes history, Kiprop cruises.
- IAAF, June 9, 2010: Chemos eyeing African record in Rome, and 2011 World title – IAAF Diamond League