Armenian, an Indo-European language - has an alphabet very similar to Greek. There are 2 main dialects - Eastern and Western - which sound very different, even though they are essentially the same language.
Eastern Armenian is the primary language of modern-day Armenia and the neighboring region of Nagorno-Karabakh. Western Armenian has historically been the dialect of Armenians living outside Armenia. However, since the time of the Armenian Genocide, many Eastern-Armenian speakers have settled in the Armenian Diaspora as well.