Nusrat al-Din Abu Bakr
Jahan-pahlavan Malik al-Mu'azzam Shahanshah al-A'zam
Coin minted under Nusrat al-Din's rule
Atabeg of the Eldiguzids
Reign	1191 – 1210
Predecessor	Qizil Arslan
Successor	Muzaffar al-Din Uzbek
Died	1210
Names Nusrat al-Din Abu Bakr
Religion	Sunni Islam

Nusrat al-Din Abu Bakr (Persian: نصرت الدین ابوبکر), was the ruler (atabeg) of the Eldiguzids from 1191 to 1210. He used the titles of Jahan-pahlavan ("champion of the world"), al-Malik al-Mu'azzam ("the respected king"), and Shahanshah al-A'zam ("the great king of kings").

Sources

• Luther, K. A. (1987). "Atābakān-e Adharbayjān". Encyclopaedia Iranica, Vol. II, Fasc. 8. pp. 890–894.