Windsor, town, part of the Hawkesbury local government area, southeast-central New South Wales, Australia. It lies on the Hawkesbury River about 30 miles (50 km) northwest of Sydney.
In 1794 Major Francis Grose, then acting governor, placed 22 settlers in the riverside district known as Green Hills. In 1810 Governor Lachlan Macquarie founded a township (named for Windsor, England) above flood level on higher ground. The modern town has several buildings dating from the period of initial settlement in the early 19th century. The Hawkesbury Regional Museum displays historical and cultural items of local interest. Hawkesbury Agricultural College was founded in 1891 and became the University of Western Sydney, Hawkesbury, in 1988. Windsor’s manufactures include clothing and plastics. Many workers commute to Sydney. Windsor was proclaimed a municipality in 1871. Pop. (2006) Hawkesbury local government area, 60,561; (2011) Hawkesbury local government area, 62,353.