| Shirt | Player | Position | Club | Age | Caps | Goals |
| 1 | Angus Gunn | Goalkeeper | Nottingham Forest | 30 | 22 | 0 |
| 2 | Aaron Hickey | Full-Back | Brentford | 24 | 21 | 0 |
| 3 | Andrew Robertson (captain) | Full-Back | Liverpool | 32 | 94 | 4 |
| 4 | Scott McTominay | Midfielder | Napoli | 29 | 70 | 15 |
| 5 | Grant Hanley | Defender | Hibernian | 34 | 68 | 2 |
| 6 | Kieran Tierney | Full-Back | Celtic | 29 | 56 | 2 |
| 7 | John McGinn | Midfielder | Aston Villa | 31 | 86 | 20 |
| 8 | Tyler Fletcher | Midfielder | Manchester Utd | 19 | 2 | 0 |
| 9 | Lyndon Dykes | Striker | Charlton Athletic | 30 | 51 | 10 |
| 10 | Che Adams | Striker | Torino | 29 | 47 | 13 |
| 11 | Ryan Christie | Midfielder | Bournemouth | 31 | 68 | 10 |
| 12 | Liam Kelly | Goalkeeper | Rangers | 36 | 2 | 0 |
| 13 | Jack Hendry | Defender | Al-Ettifaq | 31 | 38 | 3 |
| 14 | Ross Stewart | Striker | Southampton | 29 | 3 | 0 |
| 15 | John Souttar | Defender | Rangers | 29 | 24 | 2 |
| 16 | Dominic Hyam | Defender | Wrexham | 30 | 4 | 0 |
| 17 | Ben Gannon-Doak | Winger | Bournemouth | 20 | 14 | 1 |
| 18 | George Hirst | Striker | Ipswich Town | 27 | 10 | 1 |
| 19 | Lewis Ferguson | Midfielder | Bologna | 26 | 24 | 1 |
| 20 | Lawrence Shankland | Striker | Rangers | 30 | 20 | 7 |
| 21 | Craig Gordon | Goalkeeper | Hearts | 43 | 84 | 0 |
| 22 | Nathan Patterson | Full-Back | Everton | 24 | 26 | 1 |
| 23 | Kenny McLean | Midfielder | Norwich City | 34 | 58 | 3 |
| 24 | Anthony Ralston | Full-Back | Celtic | 27 | 27 | 1 |
| 25 | Findlay Curtis | Winger | Kilmarnock | 19 | 3 | 1 |
| 26 | Scott McKenna | Defender | Dinamo Zagreb | 29 | 49 | 1 |