Matthew O'Conor of Mount Druid House, Ballinagare, County Roscommon, Ireland was an Irish historian, Landowner from the O'Conor family, Barrister and de jure King of Connacht.
- Occupation
- historian, barrister
- Citizenship
- Kingdom of Ireland, United Kingdom of Great Britain and Ireland
- Born
- September 18, 1773
- Died
- May 8, 1844