The Story of the Castlebar Name

The name Castlebar comes from the Irish Caisleán an Bharraigh, meaning “Barry's castle.” The name refers to the Norman de Barry family, who established a castle here in the early thirteenth century. The castle gave its name to the settlement that eventually became the county town of Mayo.

The castle was built in a strategic position beside the River Castlebar, controlling routes through the surrounding countryside. The area had been Gaelic territory before the arrival of the Normans, but the new castle became part of the changing political landscape of medieval Connacht.

The castle and surrounding lands later passed into the hands of the Burke family, who became one of the dominant Gaelic-Norman dynasties of western Ireland. Castlebar was captured and burned several times during the turbulent medieval period, but the settlement continued to grow around the strategic site.

A new chapter began in the early seventeenth century when Sir John Bingham obtained a grant to establish a town. In 1611, King James I granted Castlebar a borough charter, formally establishing it as a town with markets and fairs. The Bingham family would remain closely associated with Castlebar for generations, eventually becoming the Earls of Lucan.

Castlebar later became an important garrison town, particularly after the Williamite wars. Military barracks were eventually constructed, reinforcing the town's strategic importance in western Connacht.

But Castlebar is perhaps best remembered for what happened here in 1798, during the rebellion known as the Year of the French. A French force under General Jean Joseph Amable Humbert, joined by Irish rebels, defeated the much larger British force near the town. The rapid British retreat became known as the “Races of Castlebar.” For a brief time, Castlebar became the centre of the short-lived Republic of Connacht, with John Moore proclaimed its president.

The town played another important role in Irish history more than eighty years later. In 1879, Michael Davitt and others helped establish the Land League at Daly's Hotel on the Mall. The movement would become one of the most important forces in the struggle for land reform in nineteenth-century Ireland.

Today, Castlebar is the administrative centre of County Mayo, but the name continues to point back to something much older: a castle belonging to the Barrys, standing beside a river in a landscape where Gaelic and Norman Ireland met.

The castle itself is gone, but its name remains.

Caisleán an Bharraigh — Barry's castle — became Castlebar, and around that lost castle grew one of Mayo's most important towns.