Islam Uddin () is an Arabic phrase meaning "Submission of the religion". It may refer to: Islam-ud-Din (1925–1945), British Indian Army soldier Islamuddin Shaikh, Pakistani politician Islam Uddin (born 1974), Indian-Bengali communist Mohammed Islamuddin, nagar panchayat chairman of Charthaval, India
See also Islamul Ahsan (born 1992), Bangladeshi cricketer