Clankelly (Irish: Clann Cheallaigh, meaning Clan Kelly or, more literally, 'Offspring of Ceallaigh'[2]) is a barony in County Fermanagh, Northern Ireland.

[3] It is bordered by two other baronies in Northern Ireland: Coole to the south-west; and Magherastephana to the north-west.

[3] It also borders two baronies in the Republic of Ireland: Monaghan to the north-east; and Dartree to the south-east.

Clankelly takes its name from Cellach, son of Tuathal, a king of the Ui Chremthainn.

The MacDonnell (Irish: Mac Domhnaill) sept of the Clann Cheallaigh are noted here, and by the 13th century, the O'Cannons (Irish: Ó Canannain), who had been ousted as kings of Cinel Conaill, settled here for a period.