Daqing Wan (born 1964 in China) is a Chinese mathematician working in the United States. He received his Ph.D.from the University of Washington in Seattle in 1991, under the direction of Neal Koblitz. Since 1997, he has been onthe faculty of mathematics at the University of California at Irvine; he has also held visiting positions at the Institute for Advanced Study in Princeton, New Jersey, Pennsylvania State University, the University of Rennes, the Mathematical Sciences Research Institute in Berkeley, California, and the Chinese Academy of Sciences in Beijing.