Sardar, also spelled as Sardaar (Persian: سردار, Persian pronunciation: [særˈdɑr], 'commander', literally 'headmaster'), is a title of royalty and nobility that was originally used to denote princes, noblemen, chiefs, kings and other aristocrats.
The term and its cognates originate from Persian sardār (سردار) and have been historically used across Persia (Iran), the Ottoman Empire and Turkey (as "Serdar"), Afghanistan (as "Sardar" for a member of the royal Mohammadzai clan in meaning of noblemen), Mesopotamia (now Iraq), Syria, South Asia (Pakistan, India, Bangladesh and Nepal), Central Asia, the Caucasus, the Balkans and Egypt (as "Sirdar").
Though historically signifying one's military rank or membership of a locally important family, in the contemporary period the title is used widely in India and neighbouring countries for any respected Sikh male.
After the decline of feudalism, sardar later indicated a Head of State, a Commander-in-chief, and an army military rank.
The more administrative title Sirdar-Bahadur denoted a Governor-General or Chief Minister of a remote province, akin to a British Viceroy.