Japan Open 1984
The Japan Open 1984 in badminton were held from 19 to 22 January 1984 in Tokyo instead. The prize money was 15 million yen.
Final results
| discipline | winner | finalist | Result |
|---|---|---|---|
| Men's singles |
 Morten Frost
|
 Liem Swie King
|
15-1, 18-15 |
| Ladies singles |
 Zheng Yuli
|
Qian ping
|
11-2, 7-11, 11-7 |
| Men's doubles |
 Thomas Kihlström Stefan Karlsson
|
 Martin Dew Steve Baddeley
|
15-6, 15-6 |
| Ladies singles |
Karen Beckman Gillian Gilks
|
Maria Fransisca Ruth Damayanti
|
13-15, 15-3, 15-12 |
| Mixed |
Martin Dew Gillian Gilks
|
Thomas Kihlström Maria Bengtsson
|
5-15, 15-3, 18-6 |