| Dates: | 31 August–5 September |
| Number Edition: | 18th |
| Prize Money: | 120000 |
| Location: | Denpasar, Indonesia |
| Ms: | Taufik Hidayat |
| Country Ms: | INA |
| Ws: | Lidya Djaelawijaya |
| Country Ws: | INA |
| Md1: | Ricky Subagja |
| Country Md1: | INA |
| Md2: | Rexy Mainaky |
| Country Md2: | INA |
| Wd1: | Helene Kirkegaard |
| Country Wd1: | DEN |
| Wd2: | Rikke Olsen |
| Country Wd2: | DEN |
| Xd1: | Tri Kusharjanto |
| Country Xd1: | INA |
| Xd2: | Minarti Timur |
| Country Xd2: | INA |
| Previous: | 1998 |
| Next: | 2000 |
The 1999 Indonesia Open in badminton was held in Denpasar, Bali, from August 31 to September 5, 1999. It was a four-star tournament and the prize money was US$120,000.
| Category | Winners | Runners-up | Score | |
|---|---|---|---|---|
| Men's singles | Taufik Hidayat | Budi Santoso | 17–14, 15–12 | |
| Women's singles | Lidya Djaelawijaya | Ellen Angelina | 11–8, 9–11, 11–2 | |
| Men's doubles | Ricky Subagja & Rexy Mainaky | Candra Wijaya & Tony Gunawan | 15–12, 15–8 | |
| Women's doubles | Helene Kirkegaard & Rikke Olsen | Eliza Nathanael & Deyana Lomban | 7–15, 17–15, 15–7 | |
| Mixed doubles | Tri Kusharjanto & Minarti Timur | Bambang Suprianto & Zelin Resiana | 15–3, 15–4 |