Sarfaraz Khan (Bengali: সরফরাজ খান, Persian: سرفراز خان; died 29 April 1740), born Mirza Asadullah (Bengali: মির্জা আসাদুল্লাহ, Persian: مرزا اسدالله) was a Nawab of Bengal. Sarfaraz Khan's maternal grandfather, Nawab Murshid Quli Khan of Bengal (Bengal, Bihar and Orissa) nominated him as the direct heir to him as there was no direct heir. After Murshid Quli's death in 1727, Sarfaraz ascended to the Masnad (throne) of the Nawab. Sarfaraz's father, Shuja-ud-Din Muhammad Khan, then the Subahdar of Orissa, getting to know it arrive at Murshidabad, the capital of the Nawabs of Bengal with a huge army. To avoid a conflict in the family the dowager Begum of the Nawab asked Shuja-ud-Din to ascend to the Masnad after Sarfaraz abdicated in favour of his father. However, circumstances led Shuja-ud-Din to nominate Sarfaraz as his heir and after Shuja-us-Din's death in 1739, Sarfaraz Khan again ascended to the Masnad as the Nawab of Bengal (Bengal, Bihar and Orissa).