Contae Thír Eoghain is the Irish name; Countie Tyrone,Coontie Tyrone and Coontie Owenslann are Ulster Scots spellings (the latter used only by Dungannon & South Tyrone Borough Council).
County Tyrone (from Irish: Tír Eoghain, meaning "land of Eoghan") is one of the thirty-two counties of Ireland and one of the six counties of Northern Ireland. It is no longer used as an administrative division for local government but retains a strong identity in popular culture.
Adjoined to the south-west shore of Lough Neagh, the county covers an area of 3,155 km2 (1,218 sq mi) and has a population of about 177,986; its county town is Omagh. The county derives its name and general geographic location from Tyrone, a Gaelic kingdom under the O'Neill dynasty which existed until the 17th century.
The name Tyrone is derived from Irish Tír Eoghain, meaning 'land of Eoghan', the name given to the conquests made by the Cenél nEógain from the provinces of Airgíalla and Ulaid. Historically, it was anglicised as Tirowen or Tyrowen, which are closer to the Irish pronunciation.