David Pui

David You Hong Pui (born 27 May 1949) is a Chinese-American mechanical engineer.

Pui, a native of Shanghai, earned his bachelor's of science (1970), master's of science (1973), and doctor of philosophy degrees (1975), all in mechanical engineering, from the University of Minnesota, where he later taught as Regents Professor and LM Fingerson/TSI Chair in Mechanical Engineering. Pui has held a Presidential Chair Professorship at the Chinese University of Hong Kong, Shenzhen.

In 2016, Pui was elected a member of the United States National Academy of Engineering, "[f]or contributions to aerosol and nanoparticle science and engineering for air pollution control."