Alexander Nikolayevich Senkevich is a Russian Indologist, philologist, translator from Hindi, writer, and poet. He is also known as Helena Blavatsky's biographer.

Alexander Serafimovich was a Russian/Soviet writer and a member of the Moscow literary group Sreda.

Aleksandr Mikhaylovich Sergeyev is a Russian physicist. In 2017-2022 he was the president of the Russian Academy of Sciences.

Alexander Sergeyevich Lappo-Danilevsky was a Russian historian and sociologist.

Alexander Sergeyevich Orlov is a contemporary Russian historian and an author of several handbooks. He is a specialist on socio-political history of Russia in the 18th century, in the history of science and in education about that period.

Count Alexander Sergeyevich Stroganov was a Russian aristocrat and a member of the Stroganov family. He was an assistant to the Minister of the Interior, a longtime President of the Imperial Academy of Arts, director of the Russian Imperial Library and a member of the Russian Academy.

Alexander Sergeyevich Yakovlev was a Soviet aeronautical engineer. He designed the Yakovlev military aircraft and founded the Yakovlev Design Bureau. Yakovlev joined the Communist Party of the Soviet Union in 1938.

Alexander Alexeyevich Shaganov is a Russian poet and songwriter, lyricist for many well-known pop songs.

Prince Alexander Alexandrovich Shakhovskoy was a Russian playwright, writer, poet, librettist, pedagogue, critic, memoirist and administrator ; arguably the most influential figure in the Russian theatre in the early 19th century.

Alexander Konstantinovch Sheller was a Russian writer of Estonian and Polish origins. A regular contributor to Sovremennik, Delo and Russkoye Slovo, Sheller published numerous stories, poems, translations, articles and essays, often using the pseudonym A.Mikhaylov, and is sometimes referred to as A.K. Sheller-Mikhaylov. His best-known novel was Gnilyie bolota, followed by Zhizn Shupova and Staryie gnyozda. The Complete Works of A.K. Sheller-Mikhaylov in 15 volumes came out in 1895.