Cognomen Сасунян (Сасунян 
, Sasunyan 
, Sassounian 
) , worldwide, is a rare family name. The cognomen Сасунян is habitual in Lebanon, where it is a rare surname, New Zealand, where it is a very rare surname, and the United States. Measured by absolute frequency, it is the most numerous in the United States, Lebanon, and Russia. Much less frequently, Сасунян is the forename as well as the last name.