Hung Tzu-yung (Chinese: 洪慈庸; pinyin: Hóng Cíyōng; born 20 December 1982) is a Taiwanese politician.

Following the death of Hung Chung-chiu, her younger brother, in 2013,[2] she joined the New Power Party upon its founding in 2015, and won election to the Legislative Yuan.

She obtained her bachelor's degree in marketing and distribution management from National Kaohsiung First University of Science and Technology.

[3] On 24 February 2015, Hung was nominated by the New Power Party as candidate for the legislative seat in the 3rd constituency of Taichung City, which includes Tanzi, Daya, Shengang and Houli.

[5][6] After taking office, Hung was assigned to the Social Welfare and Environmental Hygiene Committee.