Joseph Sung Jao-yiu SBS JP (Chinese: 沈祖堯; Jyutping: Sam2 Zou2 Jiu4, born 22 October 1959) is a Hong Kong physician and gastroenterologist, and the current dean of Lee Kong Chian School of Medicine at the Nanyang Technological University (NTU), also serving as the Senior Vice President (Health and Life Sciences) of NTU.

[9][12] The junior Sung was born in 1959; he went to the Chinese Children Institute for elementary school and entered Queen's College in 1971, finishing in 1976 after secondary five.

As the new university entrance examination, the Hong Kong Diploma of Secondary Education, would debut in 2012, that year would see CUHK beginning its 4-year curriculum and a surge of undergraduate students.

[31] Holding a Croucher Senior Research Fellowship, he went on a 6-month sabbatical in 2004 at Johns Hopkins Bloomberg School of Public Health; he became the Founding Director and Advisor of the CUHK Stanley Ho Centre for Emerging Infectious Diseases upon returning.

[12] As a gastroenterologist, his research spans intestinal bleeding, Helicobacter pylori infection, peptic ulcer, and gastrointestinal cancer.

His team was the first in showing a 1-week course of antibiotic therapy can cure H. pylori infection, treat peptic ulcer and minimize its relapse.

[37] He has edited or authored more than 15 books,[1] including Principles and Practice of Clinical Medicine in Asia (2nd ed.

[43] Sung and his wife, an obstetrician and gynecologist, were both MBBS students at the University of Hong Kong, and they went to the same hospital for internship training.

[48] In 2016 at her Year 2, she received the Innovation and Technology Scholarship Award from the Hong Kong Federation of Youth Groups,[49] and went to study at the Centre for Integrative Medicine at the University of Toronto.