| Shirt | Player | Position | Club | Age | Caps | Goals |
| 1 | David Marshall | Goalkeeper | Derby County | 36 | 44 | 0 |
| 2 | Stephen O`Donnell | Full-Back | Motherwell | 29 | 19 | 0 |
| 3 | Andrew Robertson (captain) | Full-Back | Liverpool | 27 | 45 | 3 |
| 4 | Scott McTominay | Midfielder | Liverpool | 24 | 23 | 0 |
| 5 | Grant Hanley | Defender | Norwich City | 29 | 33 | 2 |
| 6 | Kieran Tierney | Full-Back | Arsenal | 24 | 21 | 0 |
| 7 | John McGinn | Midfielder | Aston Villa | 26 | 33 | 10 |
| 8 | Callum McGregor | Midfielder | Celtic | 28 | 31 | 0 |
| 9 | Lyndon Dykes | Striker | QPR | 25 | 12 | 2 |
| 10 | Che Adams | Striker | Southampton | 24 | 4 | 2 |
| 11 | Ryan Christie | Midfielder | Celtic | 26 | 19 | 4 |
| 12 | Craig Gordon | Goalkeeper | Hearts | 38 | 57 | 0 |
| 13 | Greg Taylor | Full-Back | Celtic | 23 | 5 | 0 |
| 14 | John Fleck | Midfielder | Sheffield Utd | 29 | 5 | 0 |
| 15 | Declan Gallagher | Defender | Motherwell | 30 | 9 | 0 |
| 16 | Liam Cooper | Defender | Leeds Utd | 29 | 6 | 0 |
| 17 | Stuart Armstrong | Midfielder | Southampton | 29 | 25 | 2 |
| 18 | David Turnbull | Midfielder | Celtic | 21 | 1 | 0 |
| 19 | Kevin Nisbet | Striker | Hibernian | 24 | 3 | 1 |
| 20 | Ryan Fraser | Winger | Newcastle Utd | 27 | 18 | 4 |
| 21 | Jon McLaughlin | Goalkeeper | Rangers | 33 | 2 | 0 |
| 22 | Nathan Patterson | Full-Back | Rangers | 19 | 1 | 0 |
| 23 | Billy Gilmour | Midfielder | Chelsea | 20 | 2 | 0 |
| 24 | Jack Hendry | Defender | KV Oostende | 26 | 6 | 1 |
| 25 | James Forrest | Winger | Celtic | 29 | 37 | 5 |
| 26 | Scott McKenna | Defender | Nottingham Forest | 24 | 21 | 0 |