| Penalties | Club | VS Club | Date | |
|---|---|---|---|---|
| 9 | Scarlets | Munster | 03-10-2020 | Match details |
| 6 | Munster | Edinburgh Rugby | 10-10-2020 | Match details |
| 6 | Ulster | Connacht | 27-12-2020 | Match details |
| 5 | Gwent Dragons | Leinster | 19-02-2021 | Match details |
| 4 | Edinburgh Rugby | Zebre | 23-01-2021 | Match details |
| 4 | Ospreys | Ulster | 10-10-2020 | Match details |
| 4 | Zebre | Leinster | 12-03-2021 | Match details |
| 4 | Glasgow Warriors | Cardiff Blues | 29-11-2020 | Match details |
| 4 | Cardiff Blues | Scarlets | 09-01-2021 | Match details |
| 3 | Connacht | Glasgow Warriors | 03-10-2020 | Match details |
| 3 | Leinster | Benetton Treviso | 10-10-2020 | Match details |
| 2 | Benetton Treviso | Leinster | 10-10-2020 | Match details |
