Winnie Wong-Ng is a senior research chemist in the Materials Measurement Science Division, National Institute of Standards and Technology (NIST), Gaithersburg, Maryland. She received a B. Sc. degree in Chemistry from the Chinese University of Hong Kong, and a Ph.D. degree in Inorganic Chemistry from Louisiana State University, followed by post-doctoral and research associate/lecturer appointments in the Chemistry Department of University of Toronto. After that she worked for the International Centre for Diffraction Data (ICDD) before joining NIST.

Her main research areas at NIST have included measurements and standards of technologically important materials in bulk and film forms. Her research has focused on functional materials, including their phase equilibria, X‑ray crystallography, crystal chemistry, and combinatorial studies.  Currently she works on projects pertinent to measurements, standards, and data for energy conversion materials, as well as on projects related to CO2 mitigation.

She has about 350 publications and more than 75 invited presentations, has co-edited more than 25 books/proceedings, and has served as a co-organizer of more than 45 symposia. She was involved in developing more than 800 reference X-ray powder diffraction patterns, and about 50 phase diagrams for ceramic systems.

Dr. Wong-Ng has received many awards throughout her career including membership in the World Academy of Ceramics (WAC), ICDD distinguished fellow, AAAS fellow, ACerS fellow, and American Crystallographic Association fellow. She received two Bronze Medals from the United States Department of Commerce, the McMurdie Award from ICDD, and the 2007 Spriggs Phase Equilibria Award from ACerS.

She has served as the trustee and chair of the Electronics Division of ACerS, as a member of the Board of Directors of ICDD, as a Board member of the Applied Superconductivity Conference, and as president of NIST Association of Asian Pacific Americans. She is an associate editor for the Journal of the American Ceramic Society, and is the international report editor for Powder Diffraction.