Tirahi ( Pashto: تيراهي) are Indo-Aryan people who are native and original inhabitants of Tirah valley. They are closely related to their Dardic neighbours [1] and speak Tirahi language, a nearly extinct if not already extinct [2] Indo-Aryan language which may still be spoken by older adults, who are likewise fluent in Pashto, in a few villages in the southeast of Jalalabad in Nangarhar Province, Afghanistan. [3] They were the previous inhabitants of Tirah and the Peshawar Valley in modern-day Khyber Pakhtunkhwa, Pakistan.
The Tirahis were expelled from Tirah by the Afridi Pashtuns. [4] Georg Morgenstierne claimed that Tirahi language is "probably the remnant of a dialect group extending from Tirah through the Peshawar district into Swat and Dir." [5]
It is very likely that this language is extinct. The Tirahi are "a group of unclear origin, almost completely assimilated by Pashtun" (Pstrusinska and Gray 1990).