| Dates: | 30 July 1965– 1 August 1965 |
| Number Edition: | 32nd |
| Venue: | Singapore Badminton Hall |
| Location: | Geylang, Singapore |
| Ms: | Omar Manap |
| Country Ms: | MAS |
| Ws: | Lai Siew York |
| Country Ws: | MAS |
| Country Md1: | MAS |
| Md2: | Tan Yee Khan |
| Country Md2: | MAS |
| Country Wd1: | SGP |
| Wd2: | Luanne Lim |
| Country Wd2: | SGP |
| Country Xd1: | SGP |
| Xd2: | Vivien Gwee |
| Country Xd2: | SGP |
| Previous: | 1964 |
| Next: | 1966 |
The 1965 Singapore Open, also known as the 1965 Singapore Open Badminton Championships, took place from 30 July – 1 August 1965 at the Singapore Badminton Hall in Singapore.[1] [2]
| Category | Winners | Runners-up | Score | |
|---|---|---|---|---|
| Men's singles | Omar Manap |  Wee Sen | 15–7, 15–7 | |
| Women's singles | Lai Siew York | Aishah Attan | 11–5, 11–6 | |
| Men's doubles | Ng Boon Bee & Tan Yee Khan | Khor Cheng Chye & Lee Guan Chong | 15–8, 17–14 | |
| Women's doubles | Lim Choo Eng & Luanne Lim | Walkover | ||
| Mixed doubles | 17–14, 18–15 |