Castlebar is the county town of County Mayo, Ireland. Castlebar was originally a garrison town and derives its name from a settlement around the de Barra Castle in the 11th century. The town is home to many shops, pubs and restaurants, ensuring visitors are well-catered for. Visitors to Castlebar can take in some heritage along the walking routes as the Castlebar Heritage Trail leads through some of the historic sites in the Mayo’s county town.