| Penalties | Players | VS Club | Date | |
|---|---|---|---|---|
| 6 | Francois Trinh Duc | Benetton Treviso | 21-10-2017 | Match details |
| 3 | Francois Trinh Duc | Bath | 16-12-2017 | Match details |
| 3 | Anthony Belleau | Scarlets | 20-01-2018 | Match details |
| 2 | Anthony Belleau | Scarlets | 15-10-2017 | Match details |
| 2 | Francois Trinh Duc | Scarlets | 20-01-2018 | Match details |
| 2 | Francois Trinh Duc | Munster | 31-03-2018 | Match details |
| 1 | Francois Trinh Duc | Scarlets | 15-10-2017 | Match details |
| 1 | Francois Trinh Duc | Bath | 09-12-2017 | Match details |
| 1 | Anthony Belleau | Benetton Treviso | 14-01-2018 | Match details |
| 1 | Anthony Belleau | Munster | 31-03-2018 | Match details |
