John Coulson Kernahan was an English novelist.

Count Anton Alexander von Auersperg, also known under the name Anastasius Grün, was an Austrian poet and liberal politician from Carniola, a former Habsburg crown land in today's Slovenia.

Countee Cullen was an American poet, novelist, children's writer, and playwright, particularly well known during the Harlem Renaissance.

Gabrielle Anne Cisterne de Courtiras, vicomtesse de Saint-Mars, pen name Countess Dash, was a prolific French writer.

Sophie Rostopchine, Countess of Ségur, born Sofiya Feodorovna Rostopchina, was a French writer of Russian birth and origin. She is best known today for her novel Les Malheurs de Sophie, intended for children.

Courtney Milan, a pseudonym for Heidi Bond, is a bestselling American author of historical and contemporary romance novels. After releasing her first few books under a traditional publishing contract, Milan has self-published more recent works.

Courtney Ryley Cooper was an American circus performer, publicist and writer. During his career he published over 30 books, many focusing on crime; J. Edgar Hoover considered him at one time "the best informed man on crime in the U. S." He was also an expert on circuses, and was the chief publicist for Ringling Brothers, Barnum & Bailey Circus at the time of his death.

Courtney Sheinmel is the author of over a dozen books for kids and teens. She lives in New York City.

Courtney Summers is a Canadian writer of young adult fiction. Her most famous known works are Cracked Up to Be, This is Not a Test, All the Rage, and Sadie.

Courttia Newland is a British writer of Jamaican and Barbadian heritage.