2008–09 St. Mirren F.C. season Scottish Cup Scottish Cup

| Date_ | Round | Opponent | Venue | Result_ | Attendance |
|---|---|---|---|---|---|
| 13/01/2009 | R4 | Brechin City | Glebe Park | 3–1 | 1026 |
| 07/02/2009 | R5 | Motherwell | Fir Park | 1–1 | 5695 |
| 17/02/2009 | R5 (Replay) | Motherwell | St. Mirren Park | 1–0 | 4555 |
| 07/03/2009 | Quarter-Final | Celtic | St. Mirren Park | 1–0 | 5925 |
| 25/04/2009 | Semi-Final | Rangers | Hampden Park | 0–3 | 32431 |