Jarmila Kratochvílová

Jarmila Kratochvílová (Czech pronunciation: [ˈjarmɪla ˈkratoxviːlovaː] ^ⓘ; born 26 January 1951 in Golčův Jeníkov) is a Czechoslovak former track and field athlete. She was the 1980 Olympic silver medalist in the 400 metres. In 1983, she set the world record for the 800 metres, which still stands and is currently the longest-standing world record in athletics. Only two athletes, Pamela Jelimo of Kenya (2008), and Caster Semenya of South Africa (2018), have come within a second of Kratochvílová's mark since it was set.

A two-time World Champion, Kratochvílová won the 400 metres and 800 metres at the 1983 World Athletics Championships, setting a world record in the 400 m, which stood for two years. She also won a silver medal in the 4 × 400 metres relay at the same championships.

Kratochvílová also competed in indoor events. In 1982 she set the world indoor record in the 400 metres of 49.59 seconds; a record which stood until 2023.