Aloysius Bellecius was a Jesuit ascetic author.

Louis Jacques Napoléon Bertrand, better known by his pen name Aloysius Bertrand, was a French Romantic poet, playwright and journalist. He is famous for having introduced prose poetry in French literature, and is considered a forerunner of the Symbolist movement. His masterpiece is the collection of prose poems Gaspard de la Nuit published posthumously in 1842; three of its poems were adapted to an eponymous piano suite by Maurice Ravel in 1908.

Alpheus Hyatt Verrill, known as Hyatt Verrill, was an American zoologist, explorer, inventor, illustrator and author. He was the son of Addison Emery Verrill, the first professor of zoology at Yale University.

Alpheus Spring Packard Jr. LL.D. was an American entomologist and palaeontologist. He described over 500 new animal species – especially butterflies and moths – and was one of the founders of The American Naturalist.

Alpheus Todd was an English-born Canadian librarian and constitutional historian, most notable for his publications on parliamentary government.

Alphons Silbermann was a German Jewish sociologist, musicologist, entrepreneur and publicist.

Alphonse Allais was a French writer, journalist and humorist.

Baron Alphonse Victor Chrétien Balleydier was a 19th-century French man of letters, historian and historiographer.

Alphonse Boudard was a French novelist and playwright. He won the 1977 Prix Renaudot for Les Combattants du petit bonheur. Boudard's 1995 novel Dying childhood was awarded and recognised by the French Academy with a Grand Prix du roman de l'Académie française.

Alphonse Daudet was a French novelist. He was the husband of Julia Daudet and father of Edmée, Léon and Lucien Daudet.