The 9th World Aquatics Junior Swimming Championships were held in Netanya, Israel, at the Wingate Institute from 4 to 9 September 2023.

[5] Three large member federations opted not to compete at these championships, being Great Britain, France, and Hungary.

[7][8] *   Host nation (Israel)a Swimmers who participated in the heats only and received medals.

Note: The first version of the results erroneously recognized 3 performances as records.

Likewise, the performance from Kuzey Tuncelli in the final of the Men's 800m Freestyle was recognized as a championship record.