Mir (مير) (which is derived from the Arabic title Emir 'general, prince') is a rare ruler's title in princely states and an title generally used to refer to a person who is a descendant of a commander in medieval Muslim tradition.
It was adopted in many languages under Islamic influence, such as Balochi, Ottoman Turkish,Persian, Turkish, Sindhi, Azerbaijani, Kurdish, Kashmiri and Pashto meaning leader of a group or tribe. According to the book Persian Inscriptions on Indian Monuments, Mir is most probably an Arabized form of Pir. Pir in Old Persian and Sanskrit means the old, the wise man, the chief and the great leader. It was Arabized as Mir then, with Al(A) (Arabic definite article), it was pronounced as Amir.
In Muslim princely states of British India, few rulers were formally styled Mir, notably in present Pakistan, where only two of the six have actually reached the level of salute state, becoming entitled to a gun salute and the attached form of address His Highness:
The following all remained non-salute states :
Mir was also used as an honor rank. (See: Mirza) In Balochistan, mir is also a honorific title give to The Khan of Kalat and a sardar son or brother. When a mir has twelve mirs under him he becomes a sardar. It is given as well to people in religion. Sayyid sons or brothers remain as such until they fulfill the complete Islam requirement and hold the title of mir instead of sayyid.