Elizabeth Choy Su-Mei, known as Elizabeth Yong Su Mei before married, (29 November 1910, Kudat, Sabah - 14 September 2006, Singapore), was a Hakka from North Borneo, is noted for being a war-time heroine during the Japanese occupation and was the only woman member in the Legislative Council in 1951. She was one of the first females to sign up in the inaugural Girl Guide Company of North Borneo in 1925. Later, when she came to Singapore in 1929, she joined the first Girl Guide Company at the Church of England Zenana Missionary Society School (CEZMSS; now known as St Margaret’s). She also posed as an artist's model for the famous sculptress, Dora Gordine, who did two works of her entitled 'Serene Jade' and 'Flawless Crystal'. She worked as a teacher and became the first principal of the Singapore School for the Blind. She was also known for her qipaos and bangles, for which she was nicknamed "Dayak woman of Singapore".