Lieutenant-General Andrew Thomas Blayney, 11th Baron Blayney, was an Anglo-Irish peer. He owned the Blayney estate at Castleblayney, County Monaghan, for fifty years from 1784 to 1834.
- Occupation
- politician
- Position held
- member of the 3rd Parliament of the United Kingdom
- Citizenship
- United Kingdom of Great Britain and Ireland
- Born
- November 30, 1770
- Died
- April 8, 1834