The 1990 Singapore Open (also known as the Konica Cup) was a four-star badminton tournament that took place at the Singapore Indoor Stadium in Singapore, from July 24 to July 28, 1990. The total prize money on offer was US$90,000.

Final results CategoryWinnersRunners-upScoreMen's singles Foo Kok Keong Zhao Jianhua15–8, 10–15, 15–9Women's singles Tang Jiuhong Lee Young-suk12–9, 11–3Men's doubles Rudy Gunawan & Eddy Hartono Li Yongbo & Tian Bingyi15–4, 15–8Women's doubles Gillian Clark & Gillian Gowers Maria Bengtsson & Christine Gandrup15–12, 15–13Mixed doubles Jan Eric Antonsson & Maria Bengtsson Jan Paulsen & Gillian Gowers 9–15, 15–10, 15–7

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