The wildlife of Iran includes its flora and fauna and their natural habitats. One of the most famous members of wildlife in Iran are the world's last surviving, critically endangered Asiatic cheetah (Acinonyx jubatus venaticus) also known as the Iranian cheetah, which are today found nowhere else but in Iran. Iran had lost all its elephants, lions and tigers by the 21st century.
So no desert foxes do not live in Iran