Alexander Balmain Bruce was a Scottish churchman and theologian. He was a minister of the Free Church of Scotland.

Alexander Bengt Magnus Bard is a Swedish musician, author, lecturer, artist, songwriter, music producer, TV personality, religious and political activist, and one of the founders of the Syntheist religious movement alongside his co-author Jan Söderqvist. Bard was a member of music band Army of Lovers.

Aleksander Aleksandrovich Barykin (Byrykin) (Russian: Александр Александрович Барыкин (Бырыкин); February 18, 1952 — March 26, 2011) was a Soviet and Russian singer and songwriter.

Alexander Nikolaevich Bashlachev was a Soviet poet, singer-songwriter and guitarist, a performer in Russian rock music, included in the 27 Club.

Alexander Baumgartner was a poet and writer on the history of literature. He was nominated for the Nobel Prize in Literature three times.

Alexander Germanovich Baunov is a Russian international policy expert, journalist, publicist, and former diplomat. Since 2015, he has been a senior associate in Carnegie Moscow Center and the editor in chief of Carnegie.ru.

Alexander Alexandrovich Baykov was a Soviet university professor, scientist specializing in the fields of metallurgy and chemistry and an academician of the USSR Academy of Sciences.

Alexander Alfredovich Bek, sometimes transliterated from the Russian Cyrillic as Aleksandr Bek or Anglicized to Alexander Beck, was a Soviet novelist and writer.

Alexander Romanovich Belyaev was a Soviet Russian writer of science fiction. His works from the 1920s and 1930s made him a highly regarded figure in Russian science fiction, often referred to as "Russia's Jules Verne". Belyaev's best known books include Professor Dowell's Head, Amphibian Man, Ariel, and The Air Seller.

Alexander Berkman was a Russian-American anarchist and author. He was a leading member of the anarchist movement in the early 20th century, famous for both his political activism and his writing.