What is "jamshidi"

Jamshidi is a surname. Notable people with the surname include:

The Jamshidi are a sub-tribe of the Chahar Aimaq ethnic group in Afghanistan, one of the four major Aimaq tribes which also include the Firozkohi, Taimani, and Taimuri. The Jamshidi are primarily sedentary people living in Herat, and are believed to be of mixed Arab and Persian descent.

A 1926 publication notes that the Iranian city of Nishapur (in northeast Iran, near Badghis Province) has a population of "Jamshidis", originating from "north of Herat" who moved to the area following the Perso-Afghan War. These Jamshidis self-described as Baluch, spoke Persian, and were Ismaili.