These are the Japanese records in swimming: they are the fastest times ever swum by a swimmer from Japan in recognized events. The records are kept and maintained by the Japan Swimming Federation (JSF). The JSF recognizes records swum in both long course (50m) and short course (25m) pools.

Long course (50 metres) Men

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Women

Mixed relay

Short course (25 m) Men

Women

Mixed relay

References General Japanese Long Course Records 13 September 2026 updated Japanese Short Course Records 13 September 2026 updated Specific

External links Japan Aquatics JSF records page