The 2023 European U-23 Swimming Championships were held from 11 to 13 August 2023 in Dublin, Ireland. This is the first edition of these championships. The Championships were for swimmers aged 19 to 23.
In line with the rules of the new championship, guest non-European nations were invited, in this case the United States, South Africa and Zimbabwe. Swimmers from these nations received 'commemorative medals' reflecting their position on the podium in the race, but were disregarded for the purposes of European Championship medals.[1][2]