| Penalties | Players | VS Club | Date | |
|---|---|---|---|---|
| 3 | Tyler Bleyedaal | Ospreys | 16-09-2017 | Match details |
| 3 | Tyler Bleyedaal | Glasgow Warriors | 23-02-2018 | Match details |
| 3 | JJ Hanrahan | Cheetahs | 13-04-2018 | Match details |
| 2 | Ian Keatley | Cardiff Blues | 30-09-2017 | Match details |
| 2 | Ian Keatley | Connacht | 27-10-2017 | Match details |
| 2 | Ian Keatley | Connacht | 06-01-2018 | Match details |
| 2 | JJ Hanrahan | Edinburgh Rugby | 16-03-2018 | Match details |
| 1 | Ian Keatley | Cheetahs | 09-09-2017 | Match details |
| 1 | JJ Hanrahan | Connacht | 27-10-2017 | Match details |
| 1 | JJ Hanrahan | Zebre | 26-11-2017 | Match details |
| 1 | Ian Keatley | Ospreys | 02-12-2017 | Match details |
| 1 | Ian Keatley | Cardiff Blues | 17-02-2018 | Match details |
| 1 | Tyler Bleyedaal | Cardiff Blues | 17-02-2018 | Match details |
| 1 | Ian Keatley | Southern Kings | 07-04-2018 | Match details |
| 1 | Conor Murray | Cheetahs | 13-04-2018 | Match details |
| 1 | JJ Hanrahan | Ulster | 28-04-2018 | Match details |
