The Lion, the Witch and the Wardrobe is a fantasy novel for children by C. S. Lewis, and illustrators Pauline Baynes, Chris Van Allsburg in 1978, and Leo and Diane Dillon in 1994, published by Geoffrey Bles in 1950. It is the first published and best known of seven novels in The Chronicles of Narnia (1950–1956). Among all the author's books it is also the most widely held in libraries. Although it was written as well as published first in the series, it is volume two in recent editions, which are sequenced by the stories' chronology (the first being The Magician's Nephew). Like the others, it was illustrated by Pauline Baynes, and her work has been retained in many later editions.

Most of the novel is set in Narnia, a land of talking animals and mythical creatures that one White Witch has ruled for 100 years of deep winter. In the frame story, four English children are relocated to a large, old country house following a wartime evacuation. The youngest visits Narnia three times via the magic of a wardrobe in a spare room. All four children are together on her third visit, which verifies her fantastic claims and comprises the subsequent 12 of 17 chapters except for a brief conclusion. In Narnia, the siblings seem fit to fulfill an old prophecy and so are soon adventuring both to save Narnia and their lives. Lewis wrote the book for, and dedicated it to, his goddaughter Lucy Barfield. She was the daughter of Owen Barfield, Lewis's friend, teacher, adviser, and trustee.