The area known as Dunlewey is made up of a number of townlands; Glentornan, Dunlewey Far, Dunlewey Near, Muine Beag & Muine Mór, Sliabh na Bealtaine and Fana Bhuí. Mín na Craoibhe, Doonan and Mín na bPoll are in Sliabh na Bealtaine and Mín na nGall is in Fána Bhuí.

The placenames in Dunlewey tend to be descriptive; they describe a feature in the landscape for example Ard Glas; the green height. Many of the first people to live in Dunlewey came here on a seasonal basis, they lived along the coast of Donegal and brought their cattle and sheep to graze on the mountains over the summer months. This practice was known as 'buailteachas' or booleying/transhumance. They set-up temporary homes or huts for the summer and the evidence of these can now be found in the local placenames eg. Binn Tí Ruairí (a place where Ruairí had a hut), Ard na mBothog (the height with the huts). Evidence of the activities they undertook can also be found in the placenames eg. Poll a't-Sean Duine, an underground hollow where an old man used to make Poteen.