| Dates: | 15 July 1933– 16 December 1933 |
| Number Edition: | 5th |
| Venue: | S.V.C Drill Hall Villa Dolce |
| Location: | City Hall and Tanjong Katong, Singapore |
| Ms: | Koh Keng Siang |
| Country Ms: | Straits Settlements |
| Ws: | Ong Siew Eng |
| Country Ws: | Straits Settlements |
| Md1: | Charlie Chua |
| Country Md1: | Straits Settlements |
| Md2: | Yeo Kian Ann |
| Country Md2: | Straits Settlements |
| Wd1: | Chow Han Hua |
| Country Wd1: | Straits Settlements |
| Wd2: | Sheh Sai Ming |
| Country Wd2: | Straits Settlements |
| Xd1: | E. J. Vass |
| Country Xd1: | Straits Settlements |
| Xd2: | J. de Souza |
| Country Xd2: | Straits Settlements |
| Previous: | 1932 |
| Next: | 1934 |
The 1933 Singapore Open, also known as the 1933 Singapore Badminton Championships, took place from 15 July – 16 December 1933 at the S.V.C Drill Hall in City Hall and Villa Dolce in Tanjong Katong, Singapore. The ties were played over a few months with the first round ties being played on 15 July[1] [2] and the last few ties (the women's doubles and the mixed doubles finals) were played on 16 December at Villa Dolce due to the S.V.C Drill Hall being unavailable.[3] [4] [5]
| Category | Winners | Runners-up | Score | |
|---|---|---|---|---|
| Men's singles | Koh Keng Siang | Lim Boon Guan | 9–15, 15–7, 15–12 | |
| Women's singles | Ong Siew Eng | Alice Pennefather | 11–4, 13–10 | |
| Men's doubles | Charlie Chua & Yeo Kian Ann | 21–10, 21–13 | ||
| Women's doubles | Yang Yik Ying & Yun Chi Fen | 15–6, 15–11 | ||
| Mixed doubles | E. J. Vass & J. de Souza | L. M. Pennefather & Alice Pennefather | 21–7, 21–9 |