Family name Regzen (Regzen 
) , in the entire world, is a rare surname. The family name Regzen is characteristic of Mongolia, where it is quite a rare surname, the United States, where it is an extremely rare surname, and India. Very seldom, Regzen is the forename as well as the last name.
Batzorig, Batjargal, Doljinsuren, and Otgonsuren