Hoskinstown is a locality in Queanbeyan-Palerang Regional Council, New South Wales, Australia. The locality, and what remains of the cluster of settlement of the same name, is 38 km southeast of Canberra the Capital city of Australia, and 299 km southwest of Sydney. At the 2021 census, it had a population of 191.

The Molonglo Observatory Synthesis Telescope (MOST) is a radio telescope operating at 843 MHz. It is operated by the School of Physics of the University of Sydney. The telescope is located in Hoskinstown, near the Molonglo River and Canberra, and was constructed by modification of the east–west arm of the former Molonglo Cross Telescope, a larger version of the Mills Cross Telescope. Construction of the original "Super Cross" telescope with 1.6-kilometre arms began in 1960 by Professor Bernard Y. Mills. It became operational in 1967.