The World Aquatics Junior Swimming Championships is an international swimming championship event organized biennially by World Aquatics for girls and boys who are aged 14–18 on the 31st 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 girls who were aged 14–17 and boys who were aged 15–18 on the 31st of December of the year of the competition.
Yuliya Andreyevna Yefimova is a Russian competitive swimmer. She is the Russian record holder in the 200 metre individual medley, 50 metre breaststroke, 100 metre breaststroke, and 200 metre breaststroke. After making her Olympic debut in 2008, she went on to win the bronze medal in the 200 metre breaststroke in 2012, and silver medals in the 100 metre and 200 metre breaststroke in 2016. She is a six-time World Champion, winning the 50 metre breaststroke in 2009 and 2013, the 100 metre breaststroke in 2015, and the 200 metre breaststroke in 2013, 2017, and 2019. In 2019, she became the first woman to win the 200 metre breaststroke at a FINA World Aquatics Championships three times. She is a former world record holder in the long course 50 metre breaststroke. She has won 109 medals, including 48 gold medals, at Swimming World Cups.
Xander Skinner is a Namibian swimmer. He competed in the men's 100 metre freestyle event at the 2017 World Aquatics Championships. He is a graduate of SPIRE Institute and Academy, an Olympic training center in Geneva, Ohio.
Benedetta Pilato is an Italian swimmer. She is the world record holder in the long course 50 metre breaststroke. She is the European champion in the 50 metre breaststroke in 2021 and the 100 metre breaststroke in 2022 as well as the silver medalist in the 50 metre breaststroke in 2022. In 2021, she won a silver medal in the 50 metre breaststroke at the 2021 World Short Course Championships. She is the world champion in the 100 metre breaststroke and the silver medal in the 50 metre breaststroke at the 2022 World Aquatics Championships.
Selina Ssubi Katumba is a Ugandan swimmer. She competed in the women's 100 metre freestyle at the 2019 World Aquatics Championships.
Kristen Elena Romano is an American born Puerto Rican swimmer. She competed at the 2019 World Aquatics Championships. At the 2018 Central American and Caribbean Games she won three medals.
Lana Pudar is a Bosnian competitive swimmer specializing in the butterfly events. She won a gold medal in the women's 200 m butterfly and a bronze medal in the women's 100 m butterfly at the 2022 European Aquatics Championships, a bronze medal in the women's 200 m butterfly at the 2021 FINA World Swimming Championships, and she competed at the 2020 Summer Olympics. She is the national record holder in all six butterfly events, and a Mediterranean games record holder in the 100 m women's butterfly event.
Lara van Niekerk is a South African competitive swimmer. She is the current African, Commonwealth, and South African record holder in the long course 50-metre breaststroke and the African and South African record holder in the short course 50-metre breaststroke. She won gold medals in the 50-metre breaststroke at the 2018 African Swimming Championships and the 2022 Commonwealth Games as well as a silver medal at the 2022 World Short Course Championships and the bronze medal at the 2022 World Aquatics Championships in the same event. In the 100-metre breaststroke, she won gold medals at the 2018 African Swimming Championships and the 2022 Commonwealth Games.
