Islam Khan Mashadi (reigned: 1635–1639) was the Subahdar of Bengal. His original name was Mir Abdus Salam. He was also served high service in Vicreoy of Kabul from 1647-1656.
In 1639, soon after the Assam-Mughal and Arakan-Mughal battles, Islam Khan Mashhadi was recalled to Delhi to assume the post of Wazir (Prime Minister). Prince Shah Shuja succeeded him as the new governor of Bengal.