The Czech Records in Swimming are the fastest times ever swum by a swimmer representing the Czech Republic. These records are kept/maintained by the Czech Aquatics (Český svaz plaveckých sportů) (ČSPS).
Records are recognized for males and females in the following long course (50 m) and short course (25 m) events: freestyle: 50, 100, 200, 400, 800 and 1500 m backstroke: 50, 100 and 200 m breaststroke: 50, 100 and 200 m butterfly: 50, 100 and 200 m individual medley: 100 m (25 m only), 200 and 400 m relays: 4x50 m free (25 m only), 4x100 m free, 4x200 m free, 4x50 m medley (25 m only), and 4x100 m medley Note: In the relay events, all records are by Czech club teams, and not by Czech national teams.

All records were set in finals unless noted otherwise.

Long course (50 m)

Men
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Nation team times in relays
These appear to be the fastest times swum by Czech national relays at events; however, these times are not listed by CSPS as Czech records. (They have also not been verified as the fastest times.)
Women
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Nation team times in relays
These appear to be the fastest times swum by Czech national relays at events; however, these times are not listed by CSPS as the Czech Records. (They have also not been verified as the fastest times.)
Mixed relay
Short Course (25 m)
Men
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Nation team times in relays
These appear to be the fastest times swum by Czech national relays at events; however, these times are not listed by CSPS as the Czech Records. (They have also not been verified as the fastest times.)
Women
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Nation team times in relays
These appear to be the fastest times swum by Czech national relays at events; however, these times are not listed by CSPS as the Czech Records. (They have also not been verified as the fastest times.)





