Earl of Clancarty is a title that has been created twice in the Peerage of Ireland.
The first creation was in 1658 for Donough MacCarty, 2nd Viscount Muskerry, of the Macarthy of Muskerry dynasty.
The second creation was in 1803 for William Trench, 1st Viscount Dunlo.
See Earl of Clancarty for a full list.