Dialects TehranDialectIran is a very big country with variety of ethnicities and races. From region to region you hear many different accents and there are at least 4 main languages and 3 main dialects of Farsi. Tehrani accent is a Dialect of modern Persian Language spoken in Tehran Province, and the most co...InformationLanguage and d...The native Persian speakers of Iran dominate Tehran Province with a massive majority of 98.5% whilst other ethnic groups comprise 1.5% of the total population. Other ethnic minorities are noticeable within the area but no individual ethnic group holds a sizeable population within Tehra...Information