William Wilkie Collins (8 January 1824 – 23 September 1889) was an English novelist, playwright, and author of short stories. He was very popular during the Victorian era and wrote 30 novels, more than 60 short stories, 14 plays, and over 100 non-fiction pieces. His best-known works are The Woman in White, The Moonstone, Armadale and No Name.

Collins was a lifelong friend of Charles Dickens. A number of Collins's works were first published in Dickens's journals All the Year Round and Household Words. The two collaborated on several dramatic and fictional works, and some of Collins's plays were performed by Dickens's acting company.