| Name | Verein | Geburtstag | ||
|---|---|---|---|---|
 | Javi Rodríguez |  | RC Celta | 26.06.2003 |
| Torwart | ||||
 | David Raya |  | Arsenal FC | 15.09.1995 |
 | Joan García |  | FC Barcelona | 04.05.2001 |
 | Leo Román |  | Deportivo A Coruña | 06.07.2000 |
 | Remiro |  | Real Sociedad San Sebastian | 24.03.1995 |
 | Unai Simón |  | Athletic Club | 11.06.1997 |
| Abwehr | ||||
 | Álex Grimaldo |  | Atlético Madrid | 20.09.1995 |
 | Cristhian Mosquera | | Arsenal FC | 27.06.2004 |
 | Eric García | | FC Barcelona | 09.01.2001 |
 | Dean Huijsen |  | Real Madrid | 14.04.2005 |
 | Jon Martín | | Real Sociedad San Sebastian | 23.04.2006 |
 | Aymeric Laporte | | Athletic Club | 27.05.1994 |
 | Marc Cucurella | | Real Madrid | 22.07.1998 |
 | Marc Pubill | | Atlético Madrid | 20.06.2003 |
 | Pau Cubarsí | | FC Barcelona | 22.01.2007 |
 | Pedro Porro |  | Tottenham Hotspur | 13.09.1999 |
| Mittelfeld | ||||
 | Álex Baena | | Atlético Madrid | 20.07.2001 |
 | Beñat Turrientes | | Real Sociedad San Sebastian | 31.01.2002 |
 | Carlos Soler | | Real Sociedad San Sebastian | 02.01.1997 |
 | Dani Olmo | | FC Barcelona | 07.05.1998 |
 | Fabián Ruiz |  | Paris Saint-Germain | 03.04.1996 |
 | Gavi | | FC Barcelona | 05.08.2004 |
 | Gonzalo García |  | Fulham FC | 24.03.2004 |
 | Javier Guerra |  | Valencia CF | 13.05.2003 |
 | Marc Bernal | | FC Barcelona | 26.05.2007 |
 | Marcos Llorente | | Atlético Madrid | 30.01.1995 |
 | Martín Zubimendi | | Arsenal FC | 02.02.1999 |
 | Mikel Merino | | Arsenal FC | 22.06.1996 |
 | Pablo Fornals |  | Betis Sevilla | 22.02.1996 |
 | Pedri | | FC Barcelona | 25.11.2002 |
 | Rodri | | FC Barcelona | 22.06.1996 |
 | Sergio Gómez | | Real Sociedad San Sebastian | 04.09.2000 |
| Sturm | ||||
 | Ander Barrenetxea | | Real Sociedad San Sebastian | 27.12.2001 |
 | Borja Iglesias | | RC Celta | 17.01.1993 |
 | Fermín López | | FC Barcelona | 11.05.2003 |
 | Ferran Torres | | Paris Saint-Germain | 29.02.2000 |
 | Jesús Rodríguez |  | Como 1907 | 21.11.2005 |
 | Lamine Yamal | | FC Barcelona | 13.07.2007 |
 | Mikel Oyarzabal | | Real Sociedad San Sebastian | 21.04.1997 |
 | Nico Williams | | Athletic Club | 12.07.2002 |
 | Víctor Muñoz |  | Liverpool FC | 13.07.2003 |
 | Yéremy Pino |  | Crystal Palace | 20.10.2002 |
| Trainer | ||||
 | Luis de la Fuente | 21.06.1961 | ||
