Strangways crater, Impact crater in Northern Territory, Australia.

Strangways crater is the eroded remnant of an impact structure about 65 km east-southeast of Mataranka, Northern Territory, named after the nearby Strangways River. Its circular topographic feature, roughly 16 km across, lies within Mesoproterozoic sedimentary rocks of the McArthur Basin. Shatter cones and shocked quartz found here led to the impact origin proposed in 1971.

Research in the 1970s confirmed that the crater resulted from a meteorite impact roughly 646 million years ago, overturning earlier theories about its volcanic origin. Scientists studied the rock formations to establish this dating and mechanism.

The name comes from the nearby Strangways River. In 1996 the site was listed on the now-defunct Register of the National Estate, a national inventory of heritage places that no longer exists. The crater lies about 65 km east-south-east of Mataranka, in country crossed by the river of the same name.

The crater lies about 65 km east-southeast of Mataranka, and the site is remote and difficult to access. The circular feature sits within Mesoproterozoic sedimentary rocks of the McArthur Basin, reached only by unsealed roads, so a four-wheel-drive vehicle and planning for high temperatures and dry conditions are needed. No facilities are present.

The visible crater today represents only a portion of the original impact structure, which scientists estimate spanned 24 to 40 kilometers in diameter. Much of the ancient crater has disappeared through erosion and geological processes over geological time.