List of British records in swimming

The British records in swimming are ratified by the United Kingdom's governing body in swimming, British Swimming. Records can be set in long course (50 metres) or short course (25 metres) swimming pools, with records currently recorded in the following events for both men and women.

The relay records displayed here are the definitive national relay records, however a separate set of national relay records for club teams is recorded by British Swimming, but are not shown here. Records can be set at intermediate distances in an individual race and for the first leg of a relay race.

The ratification process and involves submission of an application by the swimmer to British Swimming detailing the name(s) of the swimmer, time swum, date and location of the swim, names of officials and the swimsuit model worn. Upon ratification, the records appear on the official records listing. Records which have not yet been fully ratified are marked with a '#' symbol in these lists, and all records were achieved in finals unless otherwise noted.

Some of the current British record holders:

Rebecca Adlington, current long course record holder in the 800 metres freestyle, which is also the current European record.

Mark Foster, current short course record holder in both freestyle and butterfly over 50 metres.

Hannah Miley, current long course and short course record holder in the 400 metres individual medley.

Rebecca Adlington, Joanne Jackson, Jazmin Carlin and Caitlin McClatchey – 4×200 m freestyle relay long course record holders.

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