1984 NSW Building Society Open
|1984 NSW Building Society Open|
|Date||10 – 16 December (men)
19 – 25 November (women)
|Paul Annacone / Christo Van Rensburg|
|Claudia Kohde-Kilsch / Helena Suková|
The 1984 NSW Building Society Open was a combined men's and women's tennis tournament played on outdoor grass courts in Sydney, Australia that was part of the 1984 Volvo Grand Prix and the 1984 Virginia Slims World Championship Series. The women's tournament was held from 19 November through 25 November 1984. The men's tournament was held from 10 December through 16 December 1984.
- It was Fitzgerald's 2nd title of the year and the 12th of his career.
- It was Navrátilová's 24th title of the year and the 203rd of her career.
- It was Annacone's 1st career title. It was Van Rensburg's only title of the year and the 2nd of his career.
- It was Kohde-Kilsch's 5th title of the year and the 11th of her career. It was Suková's 5th title of the year and the 6th of her career.