Iranian languages are a branch of the Indo-Iranian languages, which is part of the larger Indo-European language family. They are primarily spoken in Iran, Afghanistan, and Tajikistan, with notable languages including Persian, Kurdish, and Pashto. These languages share common linguistic features and have evolved over centuries, influenced by historical events and cultural exchanges. The Iranian languages can be divided into several groups, such as Western Iranian and Eastern Iranian. Persian, the most widely spoken Iranian language, serves as the official language of Iran and is also spoken in parts of Afghanistan and Tajikistan. Other languages, like Kurdish, are spoken by various ethnic groups across the region, contributing to the rich linguistic diversity of the area.