| Referee | P |  |
 |
 |
P / C |
|---|---|---|---|---|---|
| 2 | 2 | - | - | 1 | |
| Luke Pearce | 6 | 2 | - | - | 3 |
| Wayne Barnes (Eng) | 22 | 2 | - | - | 11 |
| N Whitehouse (Wal) | 1 | 1 | - | - | 1 |
| Alexandre Ruiz | 1 | 1 | - | - | 1 |
| Tom Foley | 2 | 1 | - | - | 2 |
| Andrew Jackson | 2 | 1 | - | - | 2 |
| Alain Rolland (Ire) | 5 | 1 | - | - | 5 |
| Nigel Owens | 6 | 1 | - | - | 6 |
| Rob Debney (Eng) | 10 | 1 | - | - | 10 |
| Sean Davey | 10 | 1 | - | - | 10 |
| Ashley Rowden (Eng) | 15 | 1 | - | - | 15 |
| Andrew Small | 15 | 1 | - | - | 15 |
| David Pearson (Eng) | 22 | 1 | - | - | 22 |
P = Matches played,
C = Cards .