Lap-Chee Tsui GBM OC OOnt JP FRS FRSC (Chinese: 徐立之; pinyin: Xú Lìzhī; Jyutping: ceoi4 laap6 zi1; born 21 December 1950) is a Chinese-born Canadian geneticist and served as the 14th Vice-Chancellor and President of the University of Hong Kong.

Upon the recommendation of his mentor at the CUHK, he continued his graduate education in the United States and received his Ph.D. from the University of Pittsburgh in 1979.

[2] He has also made significant contributions to the study of the human genome, especially the characterisation of chromosome 7, and, identification of additional disease genes.

[4] He also received the Order of Ontario and the title of Justice of the Peace (HKSAR) from the Hong Kong SAR Government.

[7] Tsui became the centre of controversy following Chinese Vice-Premier Li Keqiang's visit to the centenary ceremony of Hong Kong University on 18 August 2011.

During the Vice Premier's visit, police used what a review concluded was unnecessary and unjustifiable force to push some students into a stairwell away from the Vice-Premier.