| Penalties | Players | VS Club | Date | |
|---|---|---|---|---|
| 4 | Richie Mo'unga | Highlanders | 06-07-2018 | Match details |
| 3 | Richie Mo'unga | Sharks | 21-07-2018 | Match details |
| 3 | Richie Mo'unga | Lions | 04-08-2018 | Match details |
| 2 | Richie Mo'unga | Blues | 19-05-2018 | Match details |
| 2 | Richie Mo'unga | Chiefs | 02-06-2018 | Match details |
| 2 | Richie Mo'unga | Hurricanes | 28-07-2018 | Match details |
| 1 | Mitch Hunt | Highlanders | 17-03-2018 | Match details |
| 1 | Richie Mo'unga | Melbourne Rebels | 04-05-2018 | Match details |
| 1 | Richie Mo'unga | Hurricanes | 25-05-2018 | Match details |
