There are several name origins connected to the fortress. According to one of them, Smbataberd is said to have received the name from its founder Smbat Orbelian, the prince of Syunik province. Another viewpoint belongs to Ghevond Alishan, who assumed that the fortress had been named after Smbat I Bagratuni. Lastly, Kapuyt Berd (Blue Fortress), mentioned by Stepanos Orbelian as one of the strongest fortresses of Vayots Dzor province, finds its identical copy in the descriptions of Smbataberd.