Killarney is a small town located 35 kilometres (22 mi) south-east of Warwick, on the Condamine River in Queensland, Australia. The town forms part of the Southern Downs local government area. Killarney is located about 8 kilometres (5.0 mi) from the Queensland/New South Wales border. It is close to Queen Mary Falls, in the Main Range National Park, where Spring Creek plunges 40 m into the valley. At the 2011 census, Killarney had a population of 773.
The name of the town is said to be a result of the area's strong visual resemblance to that of Killarney in County Kerry, a region of south-western Ireland.