Hugh O'Sullivan History
| Club | Country | Position | NO | From | To |
|---|---|---|---|---|---|
| Leinster | Ireland | Scrum Half | 01/08/2017 | 01/07/2021 | |
| Ireland U20 | Ireland | Scrum Half | 01/02/2018 | 01/04/2019 | |
| London Irish | England | Scrum Half | 01/07/2021 | 01/07/2023 | |
| Newcastle Falcons | England | Scrum Half | 01/07/2023 |
NO = Player number .