Duong Hong Phong (Vietnamese: Dương Hồng Phong, born 30 August 1953) is an American mathematician of Vietnamese origin.
After graduating from Lycée Jean-Jacques Rousseau in Saigon, Phong attended a university year at the École Polytechnique Fédérale, Lausanne, Switzerland and then went to the United States as an undergraduate and then a graduate student at Princeton University.
In 1977, he defended his dissertation entitled "On Hölder and Lp Estimates for the Conjugate Partial Equation on Strongly Pseudo-Convex Domains" under the direction of Elias Stein.
For the academic year 1977–1978, Phong was a researcher at the Institute for Advanced Study in Princeton, New Jersey.
[3] In 2009 Phong was awarded the Stefan Bergman Prize for his research on the operators involved in the Neumann d-bar problem and on pseudo-differential operators.