Surname Adoyan (Адоян 
, Adoyan 
) , all around the world, is a rare last name. The family name Adoyan is habitual in Armenia, where it is a rare surname, Russia, where it is a very rare surname, and Kazakhstan. Measured by absolute frequency, the name is most common in Russia, Armenia, and the United States. Also, Adoyan is the forename as well as the last name.