President Sardar Ayub Khan and First Lady Jacqueline Kennedy with the prized gelding "Sardar".

Sardar-I-Azam, HRH Prince Abdol Majid Mirza of Qajar Persia c. 1920s.

Grand Vizier Ahmet Tevfik Pasha, the last Ottoman Serdar-? Azam.

Serdar Janko Vukoti? of the Principality and Kingdom of Montenegro.

King Am?null?h Kh?n conferred the title Sardar-i-Ala to those of exceptional service to the Crown.

A plaque commemorating H.H. Sardar Ranoji Shinde Bahadur, Prince of Gwalior. The title of Sardar is used by the Maratha nobility of Gwalior State and as such is used by the most senior Mahratta nobles.

Sardar (Persian: ??????, Persian pronunciation: ; "Commander" literally; "Headmaster"), also spelled as Sirdar, Sardaar, Shordar or Serdar, is a title of nobility that was originally used to denote princes, noblemen, and other aristocrats. It has also been used to denote a chief or leader of a tribe or group. It is used as a Persian synonym of the Arabic title Amir.

The term and its cognates originate from Persian sard?r (?????) and have been historically used across Persia (Iran), Ottoman Empire and Turkey (as "Serdar"), Mesopotamia (now Iraq), Syria, South Asia (Pakistan, India, Bangladesh and Nepal), the Caucasus, Central Asia, the Balkans and Egypt (as "Sirdar").

The term was widely used by Maratha nobility, who held important positions in various Maratha States of the imperial Maratha Empire.

After the decline of feudalism, Sardar later indicated a Head of State, a Commander-in-chief, and an Army military rank. As a military rank, a Sardar typically marked the Commander-in-Chief or the highest-ranking military officer in an Army, akin to the modern Field Marshal, General of the Army or Chief of Army. The more administrative title Sirdar-Bahadur denoted a Governor-General or Chief Minister of a remote province, akin to a British Viceroy.

In Himalayan mountaineering, a Sirdar is a local leader of the Sherpas. Among other duties, he records the heights reached by the individual Sherpas, which factors into their compensation. Sardar is also colloquially used to refer to adult male followers of Sikhism, as a disproportionate number of Sikhs have served in high-ranking positions within the Indian Army.^{[citation needed]} Sometimes, it has also been used to describe Punjabi Muslims.^[6]