Firies Castle was built by the OConnors. It is in the townland of Firies, in the parish of Firies, in the barony of Magunihy and in the county of Kerry. It is in the farm of Timothy OSullivan.
It was built in the thirteenth century and it was knocked in the sixteenth century It was a very small castle. It is in a ruin with over two hundred years. Numerous woods flourished for miles around it. It is from these wood that Firies got its name. When the McCarthy Mores had possession of the castle a great number of battles were fought. These battles were fought mostly between the Fitzmaurices and the McCarthy Mores. The Fitzmaurices were descendants of Reamon Le Gros. They changed their name to Fitzmaurice. A very small portion of the castle remains still.