The Archer River is a 268 km long river located on the Cape York Peninsula, Far North Queensland, Australia.
The headwaters of the river rise in the McIlwraith Range and it flows west, traversing tropical savanna plains and wetlands, flowing through Piccaninny Plains Sanctuary and Oyala Thumotang National Park, and enters the Archer Bay in the Gulf of Carpentaria on the western side of the peninsula near the town of Aurukun along with the Watson River and the Ward River.
The catchment area for the Archer River is 13,820 square kilometres. During the wet season between November and April, the river floods, replenishing over a million hectares of wetlands.. The Coen River is a tributary of the Archer River.
A total of 45 species of fish have been found in the river, including the glassfish, barred grunter, silver cobbler, fly-specked hardyhead, mouth almighty, goby, barramundi, oxeye herring, eastern rainbowfish, bony bream, gulf saratoga, giant gudgeon, freshwater longtom and seven-spot archerfish.
