Which modern languages are included in the Iranian branch of Indo-Iranian?

The Iranian languages constitute a major subbranch of the Indo-Iranian group, which is itself a branch of the Indo-European language family.123

Modern Iranian languages include several widely spoken languages as well as numerous regional dialects. Key examples include:45

• Persian (Fārsī): The most widely spoken modern Iranian language and the national language of Iran.4
• Pashto: A primary language spoken in Afghanistan and parts of Pakistan.14
• Kurdish: A major language spoken across regions of the Middle East, including parts of Iraq, Turkey, and Iran.145
• Balochi: Spoken across a vast area, primarily in parts of Iran, Pakistan, and Afghanistan.45
• Ossetic: Spoken in the Caucasus region.145
• Tajik: Closely related to Persian and spoken in Tajikistan.4

Additionally, there are many other languages and dialect groups, such as Yaghnābī, Wakhī, Zaza, and various central Iranian dialects, which maintain distinct linguistic identities.5