Dr Alexander MacBain M.A., LL.D. was a Scottish philologist, best known today for An Etymological Dictionary of the Gaelic Language (1896).

Alexander Maclaren was a Scottish Baptist minister.

Alexander Mantashev was a prominent Russian oil magnate, industrialist, financier, and a philanthropist of the Armenian origin. By the end of his life he had become one of the world's wealthiest individuals.

Alexander Alexandrovich Maysuryan is a Russian author and far-left political activist. He is a journalist, and the author of works on history and biology.

Alexander Vladimirovich Mazin is a Ukrainian-born Russian writer, poet, and songwriter, specializing in the genres of science fiction, fantasy, and alternate history.

Alexander "Sandy" McCall Smith, CBE, FRSE, is a British legal scholar and author of fiction. He was raised in Southern Rhodesia and was formerly Professor of Medical Law at the University of Edinburgh. He became an expert on medical law and bioethics and served on related British and international committees. He has since become known as a fiction writer, with sales in English exceeding 40 million by 2010 and translations into 46 languages. He is known as the creator of The No. 1 Ladies' Detective Agency series. The "McCall" derives from his great-great-grandmother Bethea McCall, who married James Smith at Glencairn, Dumfries-shire, in 1833.

Alexander Meiklejohn was a philosopher, university administrator, educational reformer, and free-speech advocate, best known as president of Amherst College.

Alexander Davidovich Meiselman was a Soviet writer, poet, orientalist, and theatre historian.

Alexander Melville Bell was a teacher and researcher of physiological phonetics and was the author of numerous works on orthoepy and elocution.

Alexander Vladimirovich Men was a Soviet Russian Orthodox priest, dissident, theologian, biblical scholar and writer on theology, Christian history and other religions.