| Penalties | Players | Competition |
|---|---|---|
| 8 | Lee Jarvis | Heineken Cup 2002/03 |
| 8 | Cerith Rees | Heineken Cup 1999/00 |
| 7 | Geraint Davies | Heineken Cup 1996/97 |
| 6 | Matthew Pearce | Heineken Cup 1999/00 |
| 6 | Matthew McCarthy | Heineken Cup 1998/99 |
| 4 | Shaun Connor | Heineken Cup 2002/03 |
| 3 | Luke Richards | Heineken Cup 1998/99 |
| 1 | Darren Case | Heineken Cup 1998/99 |
