Ikhtiyar ad-Din Muhammad bin Bakhtiyar Khilji, also known as Malik Ghazi Ikhtiyar 'l-Din Muhammad Bakhtiyar Khilji or Muhammad Bakhtiyar Khilji (died 1206) was a Turkic military general of Qutb-ud-din Aybak.The biggest credit in his record is the conquest of Bengal, which marks the beginning of Muslim rule in the region, which turned predominantly Muslim in the subsequent years.