Marilyn Chinwenwa Okoro (born 23 September 1984, in London) is a British track and field athlete. She finished third in the 800 metres at both the 2007 and 2008 IAAF World Athletics Final. She was on the bronze winning 4 × 400 m relay at the 2007 World Championships in Athletics.
She represented Great Britain at the Beijing Olympic Games in 2008 and finished sixth (1:59.53 mins) in the semi-finals. She was part of the 4 × 400 m relay team which finished fifth in the final of the 2008 Summer Olympics although the team was later upgraded to bronze medal position following disqualification for doping offences of the teams finishing in third and fourth place. She attended Stowe School, Buckinghamshire, and on 26 June 2007 graduated from the University of Bath with a B.A.
degree in Politics and French, then starting her first season as a full-time athlete. She speaks four languages (English, French, Spanish and Igbo) and sings in the jazz band The Felonius Monks. Marilyn suffered an injury plagued 2009 outdoor season, though she battled through the pain barrier to finish a very credible 8th in the World Championships 800 m final in Berlin. Okoro was also included in the squad for the 4 × 400 m, but was not selected in the line-up to run in the final.
Olympic Games: 1 bronze · World Championships: 1 bronze
Age
41 years old
As of Sep 17, 2026: 800 Metres Short Track 1:59.27, 600 Metres 1:24.36, 2019 season best 58.26 (Aug 4, 2019, Wigan (GBR)) · Olympic Games: 1 bronze · World Championships: 1 bronze · 41 years old
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