Throughout the world, Янзен (Janzen 
, Янзен 
) is a rare mostly male, but seldom female given name. The given name Янзен is habitual in Hong Kong, where it is a rare boy's name, Philippines, where it is a rare unisex name, and Indonesia, where it is a very rare boy's name. Not in comparison with a country's population, it is commonest in Philippines, Indonesia, and the United States. Predominantly, Янзен is the last name as well as the forename.