Caitlin McClatchey (born 28 November 1985) is a British former swimmer. Representing Scotland, she won two gold medals at the 2006 Commonwealth Games, in the 200 metres freestyle and 400 metres freestyle. Representing Great Britain, she won bronze medals in the 400 m freestyle at the 2005 World Championships and 2006 European Championships. She has also competed at three Olympic Games and reached the Olympic 200 m freestyle final in 2008 and 2012. She is a former British record holder in the 100 m, 200 m and 400 m Freestyle.