Gabriel Matthew Leung[6] GBS JP FRCP FRCPE (Chinese: 梁卓偉; Jyutping: Loeng4 Coek3 Wai5, born 6 November 1972) is a Hong Kong physician and epidemiologist, currently serving as the executive director (Charities and Community) of the Hong Kong Jockey Club.[9] 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.[1] Formerly, he was Hong Kong's first undersecretary for food and health and fifth director of the Office of the Chief Executive at the Government of Hong Kong.