The lion who rules and guides Narnia in C. S. Lewis’s novels is Aslan.
Aslan appears throughout The Chronicles of Narnia as a powerful and compassionate figure who creates, protects, judges, and restores the world. His name is derived from the Turkish word for “lion,” and Lewis presents him as the son of the Emperor-Beyond-the-Sea, the highest authority in Narnian cosmology.
The character is commonly interpreted as an allegorical representation of Jesus Christ, especially because of his sacrificial death and return in The Lion, the Witch and the Wardrobe. Lewis, however, described the books as imaginative stories rather than a simple one-to-one code in which every character has only one meaning.
Aslan is not the same character as Mr. Tumnus, Prince Caspian, or Puddleglum. Those figures belong to different species or roles, while Aslan remains the series’ central lion and its principal symbol of rightful authority.