| Dates: | 14 August 1948– 27 November 1948 |
| Number Edition: | 15th |
| Venue: | Clerical Union Hall |
| Location: | Balestier, Singapore |
| Ms: | Wong Peng Soon |
| Country Ms: | Colony of Singapore |
| Ws: | Ong Siew Eng |
| Country Ws: | Colony of Singapore |
| Md1: | Teoh Peng Hooi |
| Country Md1: | Colony of Singapore |
| Md2: | Wong Peng Soon |
| Country Md2: | Colony of Singapore |
| Wd1: | Helen Heng |
| Country Wd1: | Colony of Singapore |
| Wd2: | Ong Siew Eng |
| Country Wd2: | Colony of Singapore |
| Xd1: | Wong Peng Soon |
| Country Xd1: | Colony of Singapore |
| Xd2: | Waileen Wong |
| Country Xd2: | Colony of Singapore |
| Previous: | 1947 |
| Next: | 1949 |
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[1] and last (the men's doubles finals) was played on 27 November.[2] [3] [4] [5] [6] [7]
| Category | Winners | Runners-up | Score | |
|---|---|---|---|---|
| Men's singles | Wong Peng Soon | Ong Poh Lim | 15–9, 15–11 | |
| Women's singles | Ong Siew Eng | Helen Heng | 12–10, 2–11, 11–7 | |
| Men's doubles | Teoh Peng Hooi & Wong Peng Soon | 15–8, 17–15 | ||
| Women's doubles | Eunice de Souza & Alice Pennefather | 7–15, 18–14, 15–11 | ||
| Mixed doubles | Wong Peng Soon & Waileen Wong | 15–5, 15–8 |