Woolloomooloo is a harbourside, inner-city eastern suburb of Sydney, New South Wales, Australia. Woolloomooloo is 1.5 kilometres east of the Sydney central business district, in the local government area of the City of Sydney. It is in a low-lying, former docklands area at the head of Woolloomooloo Bay, on Sydney Harbour. The Domain sits to the west, the locality of East Sydney is near the south-west corner of the suburb and the locality of Kings Cross is near the south-east corner. Potts Point is immediately to the east.
Woolloomooloo was originally a working-class district of Sydney and has only recently changed with gentrification of the inner city areas of Sydney. The redevelopment of the waterfront, particularly the construction of the housing development on the Finger Wharf, has caused major change. Areas of public housing still exist in the suburb.