| Code: | Hurling |
| Sport: | Hurling |
| Mark O'Brien | |
| Irish: | Marc Ó Briain |
| Feet: | 5 |
| Inches: | 11 |
| County: | Waterford |
| Province: | Munster |
| Club: | Ferrybank |
| Clcounty: | 0 |
| Colleges: | University College Cork |
| Fitz: | 0 |
| Counties: | Waterford |
| Icposition: | Midfield |
| Icyears: | 2017-present |
| Icprovince: | 0 |
| Icallireland: | 0 |
| Nhl: | 0 |
| Allstars: | 0 |
| Icupdate: | 22:24, 28 November 2020 |
| Birth Date: | 22 September 1995 |
| Birth Place: | Ferrybank, County Waterford, Ireland |
Mark O'Brien (born 22 September 1995) is an Irish hurler who plays for Waterford Championship club Ferrybank and at inter-county level with the Waterford senior hurling team. He usually lines out as a midfielder.[1]