Munīruzzamān Khān Islāmābādī (Bengali: মনিরুজ্জামান খাঁন ইসলামাবাদী; 1875-1950), also known by the epithet Biplobi Maulana (Bengali: বিপ্লবী মাওলানা, lit. 'Revolutionary Maulana'), was a Muslim philosopher, nationalist activist and journalist from Islamabad (now known as Chittagong) in Bengal Presidency, British India (present-day Bangladesh). He was among the founders of the Jamiat Ulama-e-Hind.