| 1. Round | 05/08/2017 | Kilmarnock FC | - | St. Johnstone FC | 1:2 | ||||
| 2. Round | 12/08/2017 | St. Johnstone FC | - | Motherwell FC | 4:1 | ||||
| 3. Round | 19/08/2017 | St. Johnstone FC | - | Partick Thistle | 1:0 | ||||
| 6. Round | 16/09/2017 | Dundee FC | - | St. Johnstone FC | 3:2 | ||||
| 7. Round | 23/09/2017 | St. Johnstone FC | - | Hamilton Academical | 2:1 | ||||
| 8. Round | 30/09/2017 | Aberdeen FC | - | St. Johnstone FC | 3:0 | ||||
| 9. Round | 13/10/2017 | St. Johnstone FC | - | Rangers FC | 0:3 | ||||
| 10. Round | 21/10/2017 | Heart of Midlothian | - | St. Johnstone FC | 1:0 | ||||
| 11. Round | 24/10/2017 | St. Johnstone FC | - | Ross County FC | 0:0 | ||||
| 12. Round | 28/10/2017 | Partick Thistle | - | St. Johnstone FC | 1:0 | ||||
| 14. Round | 18/11/2017 | Hibernian FC | - | St. Johnstone FC | 1:2 | ||||
| 16. Round | 02/12/2017 | St. Johnstone FC | - | Kilmarnock FC | 1:2 | ||||
| 18. Round | 13/12/2017 | St. Johnstone FC | - | Aberdeen FC | 0:3 | ||||
| 19. Round | 16/12/2017 | Rangers FC | - | St. Johnstone FC | 1:3 |  |
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| 21. Round | 27/12/2017 | Ross County FC | - | St. Johnstone FC | 1:1 |
Ireland