| Dates: | 13 December 1973– 17 December 1973 |
| Number Edition: | 40th |
| Venue: | Singapore Badminton Hall |
| Location: | Geylang, Singapore |
| Ms: | Iie Sumirat |
| Country Ms: | INA |
| Ws: | Thongkam Kingmanee |
| Country Ws: | THA |
| Md1: | Tjun Tjun |
| Country Md1: | INA |
| Md2: | Johan Wahjudi |
| Country Md2: | INA |
| Wd1: | Theresia Widiastuti |
| Country Wd1: | INA |
| Wd2: | Sri Wiyanti |
| Country Wd2: | INA |
| Previous: | 1972 |
| Next: | 1987 |
The 1973 Singapore Open, also known as the 1973 Singapore Open Badminton Championships, took place from 13 to 17 December 1973 at the Singapore Badminton Hall in Singapore.[1] [2]
| Category | Winners | Runners-up | Score | |
|---|---|---|---|---|
| Men's singles | Iie Sumirat | Tjun Tjun | 15–3, 15–14 | |
| Women's singles |  Thongkam Kingmanee | Sri Wiyanti | 11–4, 11–8 | |
| Men's doubles | Tjun Tjun & Johan Wahjudi | 15–11, 15–11 | ||
| Women's doubles | Theresia Widiastuti & Sri Wiyanti | 15–11, 15–10 |