Knocknahunshin is a townland

Townland

A townland or bally is a small geographical division of land used in Ireland. The townland system is of Gaelic origin—most townlands are believed to pre-date the Norman invasion and most have names derived from the Irish language...

 in County Fermanagh

County Fermanagh

Fermanagh District Council is the only one of the 26 district councils in Northern Ireland that contains all of the county it is named after. The district council also contains a small section of County Tyrone in the Dromore and Kilskeery road areas....

, Northern Ireland

Northern Ireland

Northern Ireland is one of the four countries of the United Kingdom. Situated in the north-east of the island of Ireland, it shares a border with the Republic of Ireland to the south and west...

. It is in the civil parish

Civil parish

In England, a civil parish is a territorial designation and, where they are found, the lowest tier of local government below districts and counties...

 of Boho, inbetween the townlands of Glenkeel

Glenkeel

Glenkeel is a townland in the south west corner of Boho, County Fermanagh, Northern Ireland.This area includes the sub-townlands of Carrickaphreghaun, Carricknaboll, Cloghernavea, Lough Acrottan, Teeroe and Tullyveeny....

 and Reyfad

Reyfad

Reyfad is a townland in County Fermanagh, Northern Ireland. It lies in the land division of Old Barr, in the civil parish of BohoThis mountainous townland is well known for its extensive cave system and Neolithic stones.The summit of the nearby hill is known as Tullybrack or Reyfad Mountain but...

. Within this area are the sub-townlands of Arduagh, Carricknamulloge , Carricknine, Horse Rock, Legloughra, Owneyglas, Silkins and Sterrickinard.

This area is mentioned as far back as 1672 as "K:nahinshina" in the Barony of Magheraboy

Barony of Magheraboy

Magheraboy is a barony in County Fermanagh, Northern Ireland. To its east lies Lower Lough Erne, and it is bordered by three other baronies in Northern Ireland: Lurg to the north; Tirkennedy to the east; and Clanawley to the south It also borders two baronies in the Republic of Ireland: Tirhugh to...

. Later on, in 1834, it was referred to by its Irish name of Cnoc na h-Uinnsean meaning "ridge of the ash trees".