Alexander Cartellieri was a German historian, principally of the High Middle Ages. Between 1904 and 1934 he held a full professorship for Medieval and Modern History at the University of Jena. After his retirement in 1934, he continued to live in Jena through the National Socialist years, the war, Soviet occupation and the early years of German partition.

Alexander Chalmers was a Scottish writer.

Alexander Charles Ewald (1842–1891) was an English civil servant, known as a historical writer.

Prince Alexander Chavchavadze was a Georgian poet, public benefactor and military figure. Regarded as the "father of Georgian romanticism", he was a pre-eminent Georgian aristocrat and a talented general in the Imperial Russian service.

Alexander Vasilyevich Chayanov was a Russian, then Soviet agrarian economist, scholar of rural sociology, and advocate of agrarianism and cooperatives.

Alexander Pavlovich Chekhov, was a Russian novelist, short story writer, essayist and memoirist, and the elder brother of Anton Chekhov.

Alexander Leonidovich Chizhevsky was a Soviet-era interdisciplinary scientist, a biophysicist who founded "heliobiology" and "aero-ionization". He was also noted for his work in "cosmo-biology", biological rhythms and hematology."

Alexander Pavlovich Chudakov was a Russian philologist and writer, known for his study of Chekhov, and for the novel A Gloom is Cast Upon the Ancient Steps, which was awarded the Russian Booker Prize of the decade in 2011.

Alexander G. Clifford was a British journalist and author, best known as a war correspondent during World War II.

Alexander Cordell was the pen name of George Alexander Graber. He was a prolific Welsh novelist and author of 30 acclaimed works which include, Rape of the Fair Country, Hosts of Rebecca and Song of the Earth.