In all the world, Уен (Uyen 
, Uen 
, Ouen 
) is quite a rare gender-neutral given name. The forename Уен is characteristic of Macao, where it is quite a rare girly name, Vietnam, where it is quite a rare mostly girly, but seldom boy's name, and Australia, where it is a rare feminine name. Not in comparison with a country's population, it most frequently occurs in Vietnam, the United States, and China. Likewise, Уен is the last name as well as the forename.