The Water-Babies, A Fairy Tale for a Land Baby is a children's novel by Charles Kingsley. Written in 1862–1863 as a serial for Macmillan's Magazine, it was first published in its entirety in 1863. It was written as part satire in support of Charles Darwin's On the Origin of Species. The book was extremely popular in the United Kingdom and was a mainstay of British children's literature for many decades, but eventually fell out of favour in America in part due to its prejudices against Irish, Jews, Catholics, and Americans.

Charles Kingsley was a broad church priest of the Church of England, a university professor, social reformer, historian, novelist and poet. He is particularly associated with Christian socialism, the working men's college, and forming labour cooperatives, which failed, but encouraged later working reforms.