Mohammed Hasan Kamaluddin (Arabic: محمد حسن كمال الدين, born 1941) is a Bahraini former cabinet minister, member of parliament, ex-diplomat, poet, historian, writer and researcher. He is best known for having published the first Encyclopedia of Bahraini History, stretching from 3000 B.C. to the modern Bahraini state. It is the largest and first work of its kind in the GCC region.