Young Socialists has been the name of more than one group:
Young Socialists (Belgium) Young Socialists (Croatia) Young Socialists (Flanders) Young Socialists (France) Young Socialists (Germany) Young Socialists (Netherlands) Young Socialists (Poland) Young Socialists (Sweden) Young Socialists Switzerland Young Socialists (UK) and its successor Labour Party Young Socialists Young Socialists (UK, 1966), affiliated to the Workers Revolutionary Party. Young Socialists (US), affiliated to the Socialist Workers Party.
See also Young European Socialists (ECOSY) International Union of Socialist Youth (IUSY)