Banagher is a town in Ireland, located in the midlands, on the western edge of County Offaly in the province of Leinster, on the banks of the River Shannon. The town had a population of 3,000 at the height of its economic growth in the mid-19th century. According to the 2022 census, its population was 1,907.

County Offaly is a county in Ireland. It is part of the Eastern and Midland Region and the province of Leinster. It is named after the ancient Kingdom of Uí Failghe. It was formerly known as King's County, in honour of Philip II of Spain. Offaly County Council is the local authority for the county. The county population was 82,668 at the 2022 census.