Umdat ul Mulk, Amir Khan Mir Ishaq (died 25 September 1746) was a nobleman of the Mughal Empire.

He enticed the Sultan to the garden and gave information to Muhammad Shah, for which he was amply rewarded, being appointed to the position of Third Bakhshi (Mughal Pay-Master).

He returned to court and received further favours, especially due to his close friendship with Safdar Jang, that latter helped in his appointment as superintendent of Artillery.

[4] He along with Safdar Jang took the Mughal Emperor Muhammad Shah on an expedition against Rohilkhand and the person of Ali Mohammad who had aroused the enmity of Safdar Jang, but the intervention of Itimad ad Daula, Qamarudin Khan largely left the expedition a failure.

[5] It was widely believed that the Emperor would elevate him to the rank of Wazir, so upon his summon to court, as he reached the door of the Diwan e Khas he was fatally stabbed by a new attendant.