Gabriel Matthew Leung GBS JP FRCP FRCPE (Chinese: 梁卓偉; Jyutping: Loeng4 Coek3 Wai5, born 6 November 1972) is the Executive Director (Charities and Community) of the Hong Kong Jockey Club. From 2013 to 2022, he was the longest-serving Dean of Medicine at the University of Hong Kong, where he was also the inaugural Helen and Francis Zimmern Professor in Population Health. Formerly, he was Hong Kong's first Under Secretary for Food and Health and fifth Director of the Office of the Chief Executive at the Government of Hong Kong.