During the 20th century until the Islamic Revolution of 1979 Iranian culture was infl uenced by the West which had its impact in particular on the development of the Persian language. It made itself felt at the fi rst place in the lexical structure which was characterized by the mass penetration of European borrowings. Antiwestern policy became the characteristic feature of the clerical Muslim regime that took power in 1979 and included the sphere of culture. Linguistic policy was its integral part and was aimed at limited usage of western languages in Iran and against Western European borrowings into Modern Persian. The late 90-s of the 20th and the beginning of the 21st century was the time of the uncontrolled strengthening of the role of English in the social life of Iran which was the direct result of the infl uence of global civilization processes on the IRI. So as linguistic aspect of globalization is connected with the spreading of English as a world language its borrowings in Persian are not surprising. Alongside in contemporary Iran the question of changing Persian into English is not on the agenda as well as parallel use of these two languages in the Iranian society as for example in India. Persian occupies a tenable position in the Iranian society.