| Players | Club | Hat Triks | |
|---|---|---|---|
 Jean Baptiste Peyras-Loustalet | Castres | 1 | |
 Shane Horgan | Leinster | 1 | |
 Delon Armitage | London Irish | 1 | |
 Paul Sackey | London Wasps | 1 | |
 Lewis Moody | Leicester Tigers | 1 | |
Brian O'Driscoll | Leinster | 1 | |
 Clement Poitrenaud | Toulouse | 1 | |
 Ben Foden | Sale Sharks | 1 |
