Betsy Thung Sin Nio (Chinese: 汤新娘; pinyin: Tāng Xīnniáng, 22 May 1902 – 5 January 1996) was an Indonesian-Dutch women's rights activist, physician, economist and politician. Born into a wealthy and progressive Peranakan family of the 'Cabang Atas' gentry in Batavia, she was encouraged to obtain an education, which was unusual for Indonesian women at the time. After completing high school, she qualified as a bookkeeper, but – because social norms prevented women from doing office work – she became a teacher. After teaching briefly in an elementary school, in 1924 Thung enrolled at the Netherlands School of Business in Rotterdam to study economics. On graduating, she went on to earn a master's degree and a doctorate in economics. In 1932, she enrolled at the University of Amsterdam to pursue