Ferns (Irish: Fearna, meaning "alder trees" short for Fearna Mór Maedhóg) is a small historic town in north County Wexford, Ireland with a population of about 900. It is 16 km from Enniscorthy, where the Gorey to Enniscorthy N11 road joins the R745 regional road. The ruins of Ferns Castle are in the centre of the town.