Atchabahian (Armenian: Ատչաբահիան) also shorted to 'Atcha', 'Bahian' or 'Atchaba', is an Armenian surname, of mixed Armenian and Iranian origin. It derives from a mixture of an old Armenian word atch, an old Persian world 'abah'. The "IAN" ending is common among Armenian, Assyrian and Iranian surnames.
References
Atchabahian Wikipedia(Text) CC BY-SA