The Chandler River is a river of New South Wales in Australia. The headwaters of the Chandler River rise on the eastern slopes of the Northern Tablelands about 43 kilometres north-east of Armidale. It is in the Local Government Area of Armidale Dumaresq Shire. The Chandler River, Wollomombi River, Oaky River, Styx River and Apsley Rivers are important tributaries of the Macleay River. These rivers pass through a number of spectacular gorges and waterfalls in the Oxley Wild Rivers National Park.
This river flows southwards before tumbling over the Chandler Falls just to the east of the Wollomombi Falls shortly before its confluence with the Wollomombi River. From here the Chandler River continues southwards, mostly through the Oxley Wild Rivers National Park. The main tributaries of the Chandler River in order of entry are the Wollomombi River, Oaky River, Styx River and Apsley Rivers. After passing approximately 110 kilometres the Chandler River then has its confluence with Macleay River.