The Uxii (Ancient Greek: Οὔξιοι) were a tribal confederation[1] of non-Iranian semi-nomadic people who lived somewhere in the Zagros Mountains.
They were classified by Nearchus as among the four predatory peoples of the southwest along with the Mardi, Sousii, and Elymaei.
The Uxii also tolled passing armies until they were defeated by Alexander the Great at the Battle of the Uxian Defile.
Achaemenid policy on people such as the Uxii involved gift giving and condensing tribal confederations together and then setting up a loyal ruler for that tribe.
The division of the Uxians into a sedentary and nomadic component is similar to many other tribes of the Middle East and Central Asia.