Glenbrook is an affluent suburb of the Lower Blue Mountains of New South Wales, Australia. It is located 70 kilometres west of Sydney in the local government area of the City of Blue Mountains. At the Census in Australia 2016, Glenbrook had a population of 5,315 people.
Glenbrook lies between Lapstone and Blaxland at an elevation of 163 m (535 ft) and is approximately a 50 minute drive from Sydney. It plays host to trendy cafes and boutiques, while offering various tourist attractions, including weekend markets, recreational opportunities and native flora and fauna.
The suburb takes its name from Glenbrook Creek, which is on the southern side of the village and must be crossed to enter the Blue Mountains National Park. Glenbrook retains many historical homes and buildings throughout the village, although most homes are occupied and not open to the public.