Balla (pronounced Bal), is a small town in County Mayo, Ireland on the N60 National secondary road, the main road between Castlebar and Claremorris. The economy of the village survives mainly on passing trade, from the busy N60 which carries over 7,000 vehicles through the village every day. The village is to be bypassed when the new Castlebar-Claremorris road is constructed. Balla has only one street. It is notable for its round tower. It formerly was a significant shop and market centre. In recent decades it fell into decline and lost its railway station, but has enjoyed something of a revival as a residential area for people working in Castlebar.
In early times the village was known as 'Ros Dairbhreach', meaning 'The Height of the Oak Wood'. The continuing importance of the oak to the local community is reflected in the appropriately named "Dawn Oak 2000" project. At the beginning of the 21st century, 2000 oak trees were planted, creating a new wood in Balla's town park.