Sharron Elizabeth Davies, MBE (born 1 November 1962) is an English former competitive swimmer who represented Great Britain in the Olympics and European championships[1] and competed for England in the Commonwealth Games.

In 2005, Davies supported the British Olympic bid by profile-raising and appearing as spokesperson on BBC's Question Time where she made a strong case for bringing the games to London for 2012.

[7] In the 1980 Olympics, Davies took the silver medal in the 400 m individual medley behind Petra Schneider from East Germany, who later admitted that the victory was drug enhanced.

In 1989, and training at Bracknell & Wokingham Swimming Club, she returned to the pool, where she picked up two more medals at the 1990 Commonwealth Games.

[10] In the latest development in the story of the East German state-run doping programme, The Times broke the news in 2021 of a possibility that the bronze and silver medals won may be upgraded to gold.

[24] She became involved in the question of trans women in sport because at the 1980 Olympics she lost out on gold to Petra Schneider who, along with other East German athletes, had been put on testosterone to enhance their performances through doping.

[26][better source needed] The statement drew criticism with some commentators finding her comparison to blackface inappropriate and disrespectful of the fight against racism.

[28] In March, she wrote a column for The Times arguing that trans women's advantage is the result of going through male puberty, resulting in a narrower angle between the hips and knees which testosterone reduction does not eliminate, and called for trans women to compete in an open category rather than being excluded from competition entirely.

[29] In the same article, she stated: "This month we saw an athlete, Lia Thomas, who was an average club swimmer as a man claim an NCAA title as the US No 1 woman with 20 years of male development in the tank.

[31] In September 2023, Davies was reported to be leading a campaign aiming to question Members of Parliament (MPs) on camera about their understanding of the term "woman" and publishing their responses online.

[35] In the 1980s, Davies lived with and was engaged to Neil Adams[42] an Olympic and World Championship medallist in judo.

[46][failed verification] In autumn 2006, she announced that she was three months pregnant after 8 rounds of IVF treatment, having been trying for a baby for four years and suffering two miscarriages.