| Richard O'Sullivan | |
| Birth Date: | 1826 |
| Occupation: | Schoolteacher |
Richard James O'Sullivan (1826 - 1889) was a New Zealand teacher and school inspector. He was born in Kilkenny, County Kilkenny, Ireland, in about 1826. He was a teacher at St Peter's School, Auckland and taught many early native-born Aucklanders, including later cabinet ministers, John Sheehan and Joseph Tole, Mayor of Auckland Peter Dignan and Charles and William Outhwaite.