Constitution Hill is a suburb of Sydney in the state of New South Wales, Australia.

Constitution Hill is located on a hill 28 kilometres (17 mi) west of the Sydney central business district in the local government area of the City of Parramatta and is part of the Western Sydney region.

Constitution Hill was promoted from a locality to a suburb by the Geographical Names Board of New South Wales on 19 January 2007.

Page for local farmer David Johnston's family members, the third house likely being 15 Fitzwilliam Road, Old Toongabbie, which sits on the boundary of Constitution Hill.

Thinking that the convicts were at Toongabbie, they set out west, only to be informed that they were at Constitution Hill.

Mount Dorothy is now the site of Caloola Road Reserve, which features multiple plaques commemorating the rebellion.