>
Family name Буян (Bujan , Buyan , Буян ) , across the world, is quite a common surname. The last name Буян is characteristic of Mongolia, where it is quite a common surname, Croatia, and Belarus, where it is quite a rare surname. Measured by absolute frequency, it is the most numerous in Philippines, Argentina, and Spain. Much less frequently, Буян is the forename as well as the last name.