York Street is a street in the Sydney central business district in New South Wales, Australia. York Street runs 1.050 kilometres (0.652 mi) in a north to south direction only and is used predominantly by buses from the northern districts of Sydney.

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.