Oon Chiew Seng

Oon Chiew Seng
Oon c. 2014
Born	1916 Penang, British Malaya
Died	31 March 2022 (aged 106) Singapore
Citizenship	Singapore
Education	Medical College of Singapore
Occupation	Physician
Years active	1955–1991

Oon Chiew Seng (1916 – 31 March 2022) was a Singaporean physician, known for being one of the country's first gynaecologists and obstetricians. Born in Penang, she was educated in both India and Singapore and worked at Kandang Kerbau Hospital before setting up her private practice.