david da-i ho (; born november 3, 1952) is a taiwanese-american medical doctor and hiv/aids researcher who was born in taiwan and has made many innovative state of the art scientific contributions to the understanding and technological treatment of hiv infection. he is the scientific director and chief executive officer of the aaron diamond aids research center and the irene diamond professor at rockefeller university in new york city. in 2019 he and the diamond center will move to columbia university, where he has been appointed clyde ’56 and helen wu professor of medicine.