Last name Halyan (Галян 
, Halyan 
) , worldwide, is quite a rare cognomen. The last name Halyan is habitual in Ukraine, where it is quite a rare surname, Bahrain, where it is a rare surname, and Belarus. Measured by absolute frequency, this name is the most popular in Ukraine, Russia, and Kazakhstan. Much less frequently, Halyan is the forename as well as the last name.