What is the Indo-European language of Iran and Afghanistan called?

The Indo-European language of Iran and Afghanistan is called Persian. Persian is a Western Iranian language belonging to the Indo-European language family. It is primarily spoken in Iran, Afghanistan, and Tajikistan, and it also has significant speaker populations in Iraq, Uzbekistan, Turkmenistan, Russia, the Caucasus, Turkey, and the Persian Gulf states. Persian is closely related to other Iranian languages such as Kurdish, Baluchi, Luri, Gilaki, and Mazandarani.