Boyle is a town in County Roscommon, Ireland. It lies on the Boyle River, between Lough Gara and Lough Key, at the foot of the Curlew Mountains. Carrowkeel Megalithic Cemetery and the Drumanone Dolmen are also close by. As of 2022, the population of the town was 2,915. The town is in a civil parish of the same name and in the barony of Boyle.