Nguyen is a Vietnamese given name that has been popular throughout history, particularly during the Nguyen Dynasty which ruled Vietnam from 1802 to 1945. It's written with two characters in Vietnamese: Nguyễn. This name holds significant cultural and historical importance in Vietnam.
"The name Nguyen experienced a significant increase in popularity during the late 1980s and early 1990s, with a notable peak in 1992, before settling into a consistent but lower pattern of around five births per year after 2006."