It was the 98th edition (the 22nd edition in the Open Era) of the event known that year as the Holden New South Wales (NSW) Open, and was part of the ATP World Series of the 1990 ATP Tour, and the WTA Tier III tournaments of the 1990 WTA Tour.
1990 | Australian Open | French Open | 1990 in music | Open University | open source | U.S. Open | Holden | William Holden | Wacken Open Air | 1990 FIFA World Cup | NSW | 1990 ATP Tour | The Open Championship | Americans with Disabilities Act of 1990 | U.S. Open (tennis) | All England Open Badminton Championships | U.S. Open (golf) | Open Source | Open-pit mining | 2006 Australian Open | 1990 in baseball | Open Software Foundation | Indira Gandhi National Open University | Lamar Hunt U.S. Open Cup | NSW TrainLink | 2005 Australian Open – Men's Singles | 1990–91 in English football | U.S. Women's Open | open access |