Great Britain at the 2015 World Aquatics Championships

Great Britain competed at the 2015 World Aquatics Championships in Kazan, Russia between 24 July to 9 August 2015.

Great Britain at the 2015 World Aquatics Championships
Flag of Great Britain
FINA code	GBR
National federation	British Swimming
Website	www.swimming.org/britishswimming
in Kazan, Russia
Competitors	50 in 5 sports
Medals Ranked 5th	Gold 7 Silver 1 Bronze 6 Total 14
World Aquatics Championships appearances
1973 1975 1978 1982 1986 1991 1994 1998 2001 2003 2005 2007 2009 2011 2013 2015 2017 2019 2022 2023 2024

Tom Daley and Rebecca Gallantree became the first ever winners of the Mixed team event. In doing so, Daley became the first British diver to win multiple medals across World Championships, and the first British double world champion.^[1] Gallantree became the first female British diver to win a World Championship medal of any colour, and the first female British World Champion.^[2] With bronze in the Men's 10 m platform, Daley would go on to become the first British diver to win three World Championship medals.

Jack Laugher, with his bronze medal in both the Men's 3 m springboard event, and Men's 3 m synchronized springboard with Chris Mears, became the first British diver to win two World championship medals at one edition, later equalled by Daley.^[3] With a gold and three bronze medals, the 2015 edition was by some margin the most successful World Championships^[2] in diving for Great Britain since the championships began.

With Great Britain's first gold medal in Men's high diving, Gary Hunt brought the Great Britain overall tally to ten medals, the highest ever for the nation at a FINA World Aquatics Championships. Simultaneously, with his silver medal from 2013, Hunt became the most successful male high diver since the event was brought into the World Aquatics Championships.

Adam Peaty became the first British swimmer to ever win three gold medals at a global championships, Worlds or Olympic, with victories in the 50 metre and 100 metre breaststroke events and the 4 x 100 metre mixed medley relay. James Guy won the first ever gold medal in male freestyle for Great Britain at a World Championships in the 200 metres freestyle, and then anchored the Great Britain Men's 4 × 200 m freestyle relay team to its first ever victory in the event.

The bronze medal won by Jaz Carlin in the Women's 800 m freestyle brought the tally of swimming medals to five golds, a silver and three bronzes, at nine medals, the best return for Great Britain in the swimming portion of a World Aquatics Championships, having already achieved the best results in their history in diving and high diving. The full tally of seven golds, one silver and six bronze was also an historic high for the championships as a whole.