Elizabeth Choy (29 November 1910 – 14 September 2006), birth name Yong Su-Moi, OBE, was a Singaporean educator and councillor who is regarded as a war heroine in Singapore. Along with her husband, Choy Khun Heng, she supplied medicine, money and messages to prisoners-of-war interned in Changi Prison when Japanese-occupied Singapore during World War II.