The event will be held in Brno in the Czech Republic between Friday, October 29 and Sunday, October 31.
England have named a squad of 15 for the junior men’s team and a same-sized team for the junior women’s tournament, which takes place three weeks earlier at the same venue.
Toby King, chair of the Swim England water polo leadership group, said: “Congratulations to everyone who has been selected.
“Being picked to represent your country is a huge honour and I know everyone will be out to perform to the very best of their ability and make us proud.
“Good luck to both teams. We look forward to cheering them on and hope they enjoy the experience of competing on the international stage.”