shto(, rarely;[Note 1][Note 2] Pashto: Pax̌tō), also known in older literature asAfghānī () or Paṭhānī, is the South–Central Asian language of the Pashtuns. Its speakers are called Pashtuns or Pukhtuns and sometimes Afghans or Pathans. It is anEastern Iranian language, belonging to theIndo-European family. Pashto is one of the two official languages of Afghanistan, and it is the second-largest regional language of Pakistan, mainly spoken in the west and northwest of the country. Pakistan’s Federally Administered Tribal Areas (FATA) are almost 100% Pashto-speaking, while it is the majority language of province of Khyber Pakhtunkhwa and northern districts of Balochistan. Pashto is the main language among the Pashtun diasporaaround the world. The total number of Pashto-speakers is estimated to be 45–60 million people worldwide.