| Penalties | Players | VS Club | Date | |
|---|---|---|---|---|
| 5 | Adam Larkin | Cardiff Blues | 19-11-2004 | Match details |
| 3 | David Humphreys | Edinburgh Rugby | 17-12-2004 | Match details |
| 3 | David Humphreys | Connacht | 01-01-2005 | Match details |
| 3 | David Humphreys | Ospreys | 21-01-2005 | Match details |
| 3 | Paul Steinmetz | Scarlets | 15-04-2005 | Match details |
| 2 | David Humphreys | Glasgow Warriors | 16-10-2004 | Match details |
| 2 | Adam Larkin | Scottish Borders | 12-11-2004 | Match details |
| 2 | Adam Larkin | Scarlets | 28-11-2004 | Match details |
| 2 | Adam Larkin | Glasgow Warriors | 04-03-2005 | Match details |
| 1 | Adam Larkin | Munster | 06-11-2004 | Match details |
| 1 | Paul Steinmetz | Edinburgh Rugby | 17-12-2004 | Match details |
| 1 | Adam Larkin | Leinster | 27-12-2004 | Match details |
| 1 | David Humphreys | Gwent Dragons | 18-02-2005 | Match details |
