The 1989 World Badminton Grand Prix was the seventh edition of the World Badminton Grand Prix finals. It was held in Singapore, from December 6 to December 10, 1989.
| Category | Winners | Runners-up | Score | |
|---|---|---|---|---|
| Men's singles |  Xiong Guobao | Foo Kok Keong | 15–11, 15–7 | |
| Women's singles | Tang Jiuhong | Han Aiping | 12–11, 12–10 | |
| Men's doubles | Jalani Sidek & Razif Sidek | Li Yongbo & Tian Bingyi | 15–9, 15–5 | |
| Women's doubles | Rosiana Tendean & Erma Sulistianingsih | Dorte Kjær & Nettie Nielsen | 11–15, 18–16, 18–16 | |
| Mixed doubles | Eddy Hartono & Verawaty Wiharjo | Thomas Lund & Pernille Dupont | 12–15, 15–7, 15–6 |