Caroline Atwater Mason was an American novelist and travel writer.

Caroline Frances Burrell, née Benedict was a prolific author who wrote under the pseudonym Caroline French Benton.

Caroline Lee Whiting Hentz was an American novelist and author, most noted for her defenses of slavery and opposition to the abolitionist movement. Her widely read The Planter's Northern Bride (1854) was one of the genre known as anti-Tom novels, by which writers responded to Harriet Beecher Stowe's bestselling anti-slavery novel, Uncle Tom's Cabin (1852).

Caroline Dale Snedeker née Parke was an American writer, primarily of children's historical novels. Two of her books, Downright Dencey and The Forgotten Daughter, were runners-up for the Newbery Medal. On occasion she used the pen name Caroline Dale Owen.

Carolyn Sherwin Bailey was an American children's author. She was born in Hoosick Falls, New York and attended Teachers College, Columbia University, from which she graduated in 1896. She contributed to the Ladies' Home Journal and other magazines. She published volumes of stories for children like methods of story telling, teaching children and other related subjects, which include Boys and Girls of Colonial Days (1917); Broad Stripes and Bright Stars (1919); Hero Stories (1919); and The Little Rabbit Who Wanted Red Wings (1945). She wrote For the Children's Hour (1906) in collaboration with Clara M. Lewis. In 1947, her book Miss Hickory won the Newbery Medal.

Carolyn Wells (June 18, 1862 — March 26, 1942) was an American mystery author and poet.

Carveth Read (1848–1931) was a 19th- and 20th-century British philosopher and logician.

Catherine Cooper Hopley, also known by the pen-name Sarah L. Jones, was a British author, governess, artist, and naturalist known for her books on the American Civil War and her nature books for general audiences, including the first popular book on snakes in the English language.

Catherine Ann Crowe, née Stevens was an English novelist, a writer of social and supernatural stories, and a playwright. She also wrote for children.

Catherine Helen Spence was a Scottish-born Australian author, teacher, journalist, politician, leading suffragist, and Georgist. Spence was also a minister of religion and social worker, and supporter of electoral proportional representation. In 1897 she became Australia's first female political candidate after standing (unsuccessfully) for the Federal Convention held in Adelaide. Called the "Greatest Australian Woman" by Miles Franklin and by the age of 80 dubbed the "Grand Old Woman of Australia", Spence was commemorated on the Australian five-dollar note issued for the Centenary of Federation of Australia.