Chukwuemeka has struggled to breakthrough at Chelsea since his £20million move from Aston Villa but he starred for England in their Under-19 European Championship win last summer.
The 19-year-old is joined in the England squad by Chelsea team-mates Harvey Vale, Bashir Humphreys and Teddy Sharman-Lowe.
Tottenham duo Alfie Devine and Dane Scarlett have been called up for the tournament in Argentina, which gets underway on May 20.
Arsenal’s Brooke Norton-Cuffy has also been named in the squad, along with Brentford duo Matthew Cox and Daniel Oyegoke.
England kick off against Tunisia in Buenos Aires on May 22 and also play Uruguay and Iraq in their group.
England U20s World Cup squad in full
Goalkeepers: James Beadle (Brighton), Matthew Cox (Brentford), Teddy Sharman-Lowe (Chelsea)
Defenders: Callum Doyle (Coventry), Ronnie Edwards (Peterborough), Bashir Humphreys (Chelsea), Brooke Norton-Cuffy (Arsenal), Daniel Oyegoke (Brentford), Jarell Quansah (Liverpool), Imari Samuels (Brighton)
Midfielders: Carney Chukwuemeka (Chelsea), Alfie Devine (Tottenham), Sam Edozie (Southampton), Darko Gyabi (Leeds), Aaron Ramsey (Aston Villa), Alex Scott (Bristol City), Harvey Vale (Chelsea)
Forwards: Liam Delap (Manchester City), Daniel Jebbison (Sheffield United), Mateo Joseph (Leeds), Dane Scarlett (Tottenham)
