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 Djaelawidjaya | 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 | Trikus Heryanto & Minarti Timur | Bambang Suprianto & Zelin Resiana | 15–3, 15–4 |