Windsor is a town lying west of Sydney, New
South Wales, Australia. Windsor is located in
the local government area of the City of
Hawkesbury. It sits on the Hawkesbury River,
on the north-western outskirts of the Sydney
metropolitan area. At the 2011 census, Windsor
had a population of 1,803.

Floods are a major concern in Windsor. Its
proximity to the Hawkesbury River has resulted
in numerous disastrous floods. A horseshoe on
the outside wall of the Macquarie Arms pub in
Windsor marks the level the flood peaked at in
1867, when beaches along the Hawkesbury to
Barrenjoey were littered with the debris
from the town.

The spread of the suburbs of metropolitan
Sydney has almost reached Windsor, and
the town is now regarded as an outer suburb,
though still retaining its appeal as a small
country town. Windsor railway station (opened 1
December 1864), is on the Richmond branch of
the North Shore, Northern & Western Line of
the Sydney Trains network.