2011 FIFA U-20 World Cup squads
As per FIFA regulations, The final team list of the 21 players selected to participate in the competition should notify the FIFA general secretariat, at least ten working days before the opening match of the final competition.
Those marked in bold have been capped at full international level.
Group A
Head coach: Eduardo LaraHead coach: Francis SmereckiHead coach: Cheick Fantamady DialloHead coach: Lee Kwang-jongGroup B
Head coach: Martin Mpile NdtoungouHead coach: Chris MilicichHead coach: Ilídio ValeHead coach: Juan VerzeriGroup C
Head coach: Jan Versleijen- Nick Feely replaced Lawrence Thomas on 22 July due to a thigh injury.
- Mathew Leckie was withdrawn by his club side Borussia Mönchengladbach on 23 July 2011 and replaced by Corey Gameiro.
Group D
Head coach: Ivan GrnjaHead coach: Ever Hugo AlmeidaHead coach: John ObuhHead coach: Khalid Al-KoroniGroup E
Head coach: Andreas HerafHead coach: Ney FrancoHead coach: Diaa El-SayedHead coach: Alfredo PoyatosGroup F
Head coach: Walter PerazzoHead coach: Brian Eastick- Ryan Noble did not travel with the squad from their training camp in Denver, Colorado, to their base in Colombia, as he picked up a back injury in a training session.
- Dean Parrett returned home before England's round of 16 match with Nigeria, after injuring himself, also in a training session
Player statistics
;Player representation by club| Players | Clubs |
| 7 |  25 April,  Lyon,  Saprissa |
| 6 |  Barcelona,  Benfica,  Comunicaciones,  River Plate |
| 5 |  Al-Ahli,  Al-Ahly, Al-Ittihad, Al-Mokawloon Al-Arab Defensor Sporting,  Hajduk Split, Porto |
| 4 | Alajuelense, Atlético Madrid,  Central Coast Mariners Chorrillo,  Flamengo,  Guadalajara, São Paulo Sobaeksu,  Stade Malien |
;Player representation by league
| Country | Players |
| Total | 504 |
 England | 31 |
 Spain | 31 |
 France | 25 |
 Portugal | 22 |
 Argentina | 21 |
 Korea DPR | 21 |
 Saudi Arabia | 21 |
 Egypt | 21 |
 Mexico | 21 |
 South Korea | 20 |
 Ecuador | 19 |
 Uruguay | 18 |
 Brazil | 18 |
 Colombia | 14 |
| Others | 221 |
The England, Saudi Arabia, Egypt and North Korea squads were made up entirely of players from the respective countries' domestic leagues.
Although Italy failed to qualify for the finals, their domestic leagues were represented by 12 players. Altogether, there were 36 national leagues that had players in the tournament.