Cognomen Arosyak (Аросяк , Arosyak ) , globally, is an extremely rare surname. Much more frequently, Arosyak is the forename as well as the last name.
ארוסיאכ, and ארוסיאק
Mesropian
, Arosyak 
) , globally, is an extremely rare surname. Much more frequently, Arosyak is the forename as well as the last name.