Glenwood is a suburb of Sydney, in the state of New South Wales, Australia. Glenwood is located 33 kilometres north-west of the Sydney central business district in the local government area of the City of Blacktown. Glenwood is part of the Hills District within the Greater Western Sydney region.
Glenwood takes its name from an historic property in the area, named ‘Glenwood Park’ in the 1940s, but previously known as Norfolk Vale (1846–1882), and Sorrento (1882–1941). It was formally recognised as a suburb in 1996.
It is noted as the first site to be developed within the Rouse Hill Development area.