| Blackwattle Bay | |
|---|---|
 Blackwattle Bay Pontoon, Glebe | |
  Blackwattle Bay | |
| Location | Sydney Harbour, New South Wales |
| Coordinates | 33°52′21″S 151°11′20″E / 33.872564°S 151.188912°E |
| Part of | Sydney Harbour |
| Primary outflows | Johnstons Bay |
| Basin countries | Australia |
| Settlements | Glebe |
Blackwattle Bay is a bay located to the south–east of Glebe Island and east of Rozelle Bay on Sydney Harbour, in New South Wales, Australia. The bay was named in 1788 after the Black Wattle tree found at the bay, which was used for housing construction.
When first used, the bay was a swampy inlet fed by a creek that ran from its eastern end. Industrial use by tanners and slaughter houses caused the area to be fouled by noxious fumes and there were many complaints by the residents.
An embankment with a bridge was built across the swamp to provide access from Glebe to Pyrmont, being known as Bridge Rd.[1][2] The area to the southeast of the road was filled in becoming Wentworth Park. A coal unloader and other facilities were built on the northwest side of the road and the by now also features the Sydney Fish Market on its northeast side.
