Martin Place is a pedestrian mall in the Sydney central business district, New South Wales, Australia. Martin Place has been described as the "civic heart" of Sydney. As home to the Reserve Bank of Australia, the Commonwealth Bank, Macquarie Bank, Westpac and other corporations, it is also a centre of business and finance. The Sydney GPO is also located on Martin Place.

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.