This is a Vietnamese name; the family name is Nguyen. According to Vietnamese custom, this person properly should be referred to by the given name Oanh.
Professor Nguyen Xuan Oanh (1921-2003) was trained as an economist, receiving his doctorate from Harvard University. He subsequently worked for the International Monetary Fund before returning to Vietnam as an economic adviser. He was awarded the Harvard Centennial Medal in 1999 given by the Harvard Graduate School of Arts and Sciences.
