Deng Hongkui (Chinese: 邓宏魁) is a Chinese immunologist and stem cell researcher. He is a Changjiang Professor, the Boya Chair Professor, and Director of the Institute of Stem Cell Research at Peking University. He was awarded US$1.9 million by the Bill & Melinda Gates Foundation for his research on vaccines for HIV and hepatitis C. In 2017, he and Chen Hu engineered resistance to HIV in mice using CRISPR gene editing, and for the first time used the technique on an AIDS patient.