The 1948 Singapore Open, also known as the 1948 Singapore Badminton Championships, took place from 14 August – 27 November 1948 at the Clerical Union Hall in Balestier, Singapore. The ties were played over a few months with the first round ties being played on the 14 of August and last (the men's doubles finals) was played on 27 November.

Final results CategoryWinnersRunners-upScoreMen's singles Wong Peng Soon Ong Poh Lim15–9, 15–11Women's singles Ong Siew Eng Helen Heng12–10, 2–11, 11–7Men's doubles Teoh Peng Hooi & Wong Peng Soon Ong Poh Lim & Tan Chong Tee 15–8, 17–15Women's doubles Helen Heng & Ong Siew Eng Eunice de Souza & Alice Pennefather7–15, 18–14, 15–11Mixed doubles Wong Peng Soon & Waileen Wong Ong Poh Lim & Helen Heng 15–5, 15–8

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