"Carmilla" is a Gothic novella by Joseph Sheridan Le Fanu. First published in 1872, it tells the story of a young woman's susceptibility to the attentions of a female vampire named Carmilla. "Carmilla" predates Bram Stoker's Dracula by 25 years and has been adapted many times for cinema.

Joseph Thomas Sheridan Le Fanu was an Irish writer of Gothic tales, mystery novels, and horror fiction. He was a leading ghost story writer of his time, central to the development of the genre in the Victorian era. M. R. James described Le Fanu as "absolutely in the first rank as a writer of ghost stories". Three of his best-known works are the locked-room mystery Uncle Silas, the lesbian vampire novella Carmilla, and the historical novel The House by the Churchyard.