Cardiff City's squad numbers for the 2021/22 season have been submitted and approved by the EFL.
1. PHILLIPS, Dillon
2. McGUINNESS, Mark
3. BAGAN, Joel
4. MORRISON, Sean (C)
5. FLINT, Aden
6. VAULKS, Will
7. BACUNA, Leandro
8. RALLS, Joe
10. MOORE, Kieffer
11. MURPHY, Josh
14. VASSELL, Isaac
15. WINTLE, Ryan
16. NELSON, Curtis
17. TOMLIN, Lee
19. COLLINS, James
20. WHYTE, Gavin
21. PACK, Marlon
25. SMITHIES, Alex
26. GILES, Ryan
27. COLWILL, Rubin
28. SANG, Tom
29. HARRIS, Mark
30. BROWN, Ciaron
31. RATCLIFFE, George
36. EVANS, Kieron
37. BOWEN, Sam
38. NG, Perry
39. DAVIES, Isaak