Costello, also known as Casla, is a Gaeltacht village in the west of Co Galway. It is located between Inverin and Carraroe and lies on the R336 road beside Clynagh Bay. Costello, sometimes spelled Costelloe, is the headquarters of RTÉ Raidió na Gaeltachta. The area is served by the 424 bus route from Galway City, which is 37.5km east. Angling is popular in the area while other local amenities include a coffee shop, a flower and crafts shop, two pubs, a shop/filling station, a golf course and schools, including Ionad Foghlama, the adult education service.