The 1990 World Badminton Grand Prix was the eighth edition of the World Badminton Grand Prix finals. It was held in Denpasar, Bali, Indonesia, from December 12 to December 16, 1990.

Category	Winners	Runners-up	Score
Men's singles	Eddy Kurniawan	Rashid Sidek	18–13, 9–15, 15–2
Women's singles	Susi Susanti	Tang Jiuhong	8–11, 11–5, 12–10
Men's doubles	Eddy Hartono & Rudy Gunawan	Cheah Soon Kit & Soo Beng Kiang	15–6, 15–8
Women's doubles	Rosiana Tendean & Erma Sulistianingsih	Lai Caiqin & Yao Fen	18–14, 15–10
Mixed doubles	Thomas Lund & Pernille Dupont	Jon Holst-Christensen & Grete Mogensen	12–15, 15–9, 15–8

	Quarterfinals							Semifinals							Finals
		Yang Yang	15	15
		Pär-Gunnar Jönsson	10	11
									Yang Yang	11	15	15
									Eddy Kurniawan	15	8	17
		Eddy Kurniawan	15	15
		Thomas Stuer-Lauridsen	12	13
																Eddy Kurniawan	18	9	15
																Rashid Sidek	13	15	2
		Zhao Jianhua	11	15	12
		Ardy Wiranata	15	8	15
									Ardy Wiranata	14	10
									Rashid Sidek	17	15
		Park Joo Bong	12	11
		Rashid Sidek	15	15

	Quarterfinals							Semifinals							Finals
		Li Lingwei	12	11
		Bang Soo Hyun	10	7
									Li Lingwei	9	8
									Tang Jiuhong	11	11
		Tang Jiuhong	11	11
		Lim Xiaoqing	4	5
																Tang Jiuhong	8	11	10
																Susi Susanti	11	5	12
		Sarwendah Kusumawardhani	10	8
		Han Aiping	11	11
									Han Aiping	7	10
									Susi Susanti	11	12
		Han Jingna	4	2
		Susi Susanti	11	11

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