The World Aquatics Junior Swimming Championships (commonly referred to as 'Junior World Championships' or 'Junior Worlds') is an international swimming championship event organized biennially by World Aquatics for swimmers aged 14âÂÂ18 years as of 31 December of the year of the competition. It is usually held on odd years. Prior to 2023, the event was known as the FINA World Junior Swimming Championships and was open to female swimmers aged 14âÂÂ17 and male swimmers aged 15âÂÂ18 as of 31 December of the year of the competition.
Last updated after the 2025 Championships
All records were set in finals unless noted otherwise. All times are swum in a long-course (50m) pool.