Last name Нгуйен (Nguyen 
, Нгуйен 
) , globally, is a prevalent surname. The cognomen Нгуйен is habitual in Vietnam, where it is a prevalent surname, Macao, and Australia, where it is a common surname (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in Vietnam, the United States, and Australia. Very seldom, Нгуйен is the forename as well as the last name.