John Joseph William Molesworth Oxley was an explorer and surveyor of Australia in the early period of British colonisation. He served as Surveyor General of New South Wales and is perhaps best known for his two expeditions into the interior of New South Wales and his exploration of the Tweed River and the Brisbane River in what is now the state of Queensland.

The Tweed River is a river situated in the Northern Rivers region of New South Wales, Australia. From the middle reaches of its course, the state boundary between New South Wales and Queensland is located approximately 10 kilometres (6.2 mi) north.