Last name Гасьян (Gatian 
, Гасьян 
) , throughout the world, is a rare cognomen. The surname Гасьян is characteristic of the United States, where it is a very rare surname, France, where it is an extremely rare surname, and Philippines. Not in comparison with a country's population, it is commonest in the United States, India, and Philippines. Very seldom, Гасьян is the forename as well as the last name.