Cognomen Nhuyen (Nhuyen 
) , around the world, is a rare surname. The family name Nhuyen is habitual in Vietnam, where it is a rare surname, Canada, where it is a very rare surname, and Germany, where it is an extremely rare surname. In absolute terms, the name is most common in Vietnam, the United States, and Canada. Very seldom, Nhuyen is the forename as well as the last name.