Kaiya Seki

{{Short description|Japanese swimmer (born 1999)}}

{{Use dmy dates|date=April 2021}}

{{Infobox swimmer

| name = Kaiya Seki

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| nationality = Japanese

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| club = Nihon University

| birth_date = {{birth date and age|1999|12|24|df=yes}}

| birth_place = Tokyo, Japan{{cite web |title=Kaiya Seki |url=https://olympics.com/tokyo-2020/olympic-games/en/results/swimming/athlete-profile-n1315938-seki-kaiya.htm |website=Olympics.com |publisher=Tokyo 2020 |access-date=27 August 2021 |archive-url=https://web.archive.org/web/20210827230951/https://olympics.com/tokyo-2020/olympic-games/en/results/swimming/athlete-profile-n1315938-seki-kaiya.htm |archive-date=27 August 2021 |url-status=live}}

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}}

Kaiya Seki ({{langx|ja|関 海哉}}, Seki Kaiya; born 24 December 1999) is a Japanese swimmer.{{cite web|url=https://swimswam.com/lots-o-cash-on-offer-as-we-rank-top-3-jpn-records-most-likely-to-fall/ |title=Lots O' Cash On Offer As We Rank Top 3 Japanese Records Most Likely To Fall |work=SwimSwam |date=7 February 2020 |access-date=9 October 2020}} He competed in the men's 100 metre freestyle event at the 2018 FINA World Swimming Championships (25 m), in Hangzhou, China.{{cite web|url=https://www.omegatiming.com/File/Download?id=000112010C0101EC01FFFFFFFFFFFF01 |title=14th FINA World Swimming Championships (25m): Men's 100m Freestyle |work=FINA |access-date=9 October 2020}} He qualified to represent Japan at the 2020 Summer Olympics.{{Cite web|date=10 April 2021|title=No Additional Names Added As JASF Finalizes Host Nation's OLY Roster|url=https://swimswam.com/no-additional-names-added-as-jasf-finalizes-host-nations-oly-roster/|access-date=11 April 2021|website=SwimSwam|language=en-US}}