Books about Man-woman relationships -- Fiction (sorted alphabetically)
- Common Law Robert W. Chambers
- Concerning Isabel Carnaby Ellen Thorneycroft Fowler
- Confidence Henry James
- Conflict David Graham Phillips
- conquest of Rome Matilde Serao
- conquista di Roma (Italian) Matilde Serao
- Contact, and Other Stories Frances Noyes Hart
- Corpus earthling Louis Charbonneau
- Cortiço (Portuguese) Aluísio Azevedo
- Cosmic Courtship Julian Hawthorne
- Cosmic striptease Harlan Ellison
- Cost David Graham Phillips
- Countess of Rudolstadt George Sand
- cowboy and the lady and her pa : A story of a fish out of water Irvin S. Cobb
- Creators: A Comedy May Sinclair
- Crime of Henry Vane: A Study with a Moral Frederic Jesup Stimson
- Critical difference Murray Leinster
- Crooked Mile Oliver Onions
- Cross of Berny; Or, Irene's Lovers Théophile Gautier, Mme Emile de Girardin, Jules Sandeau, and Joseph Méry
- Crowned Queen: The Romance of a Minister of State Sydney C. Grier
- crown of straw Allen Upward
- Cruel Enigma Paul Bourget
- Cruelle Énigme (French) Paul Bourget
- curse of Clifton : or, the widowed bride Emma Dorothy Eliza Nevitte Southworth
- curse of gold Ann S. Stephens