Hyde Park, Sydney, is an urban park, of 16.2-hectare (40-acre), located in the central business district of Sydney, in the City of Sydney local government area of New South Wales, Australia. It is the oldest public parkland in Australia. Hyde Park is on the eastern fringe of the Sydney city centre and is approximately rectangular in shape, being squared at the southern end and rounded at the northern end. It is bordered on the west by Elizabeth Street, on the east by College Street, on the north by St James Road and Prince Albert Road and on the south by Liverpool Street.

The Sydney central business district (CBD) is the historical and main commercial centre of Sydney. The CBD is Sydney's city centre, or Sydney City, and the two terms are used interchangeably. Colloquially, the CBD or city centre is often referred to simply as "Town" or "the City". The Sydney city centre extends southwards for about 3 km (2 mi) from Sydney Cove, the point of first European settlement in which the Sydney region was initially established.