| William Dollard | |
| Bishop Of: | Saint John in America |
| Diocese: | Saint John, New Brunswick |
| Enthroned: | September 30, 1842 |
| Ended: | August 20, 1851 |
| Predecessor: | Diocese erected September 30, 1842 |
| Successor: | Thomas-Louis Connolly |
| Ordination: | October 12, 1817 |
| Consecration: | June 11, 1843 |
| Birth Date: | 29 November 1789 (baptized) |
| Birth Place: | Ballytarina, County Kilkenny, Republic of Ireland |
| Death Place: | Fredericton, New Brunswick |
| Buried: | Hermitage Cemetery |
| Nationality: | Irish / Canadian |
| Religion: | Roman Catholic |
| Alma Mater: | St Kieran's College, Kilkenny |
William Dollard (baptised 29 November 1789 - 29 August 1851) was an Irish born Canadian Roman Catholic priest and Bishop of Saint John in America, New Brunswick from 1842 to 1851. William was born in County Kilkenny, Ireland, to Michael Dollard and Anastasia Dunphy. He studied in St Kieran's College, Kilkenny, and completed his theological training in Canada.