Surname Себастян (Sebastian 
, Себастян 
) , globally, is a widespread cognomen. The surname Себастян is habitual in Spain, where it is a common surname, Poland, where it is quite a common surname, and United Arab Emirates (explore the name in all countries). Measured by absolute frequency, it most frequently occurs in Mexico, Spain, and India. Likewise, Себастян is the forename as well as the last name.