Aslan is the ruler and great lion of Narnia in C.S. Lewis's The Lion, the Witch and the Wardrobe.
Aslan is introduced as the rightful king of Narnia and a central figure in the conflict against the White Witch. His return signals hope for a land trapped in winter, and his authority extends beyond military leadership: he represents the deeper moral order of Narnia.
In the first published Narnia novel, Aslan sacrifices himself to save Edmund Pevensie after Edmund's betrayal. The story then presents Aslan's return to life, which enables him to defeat the Witch's power and restore Narnia.
Aslan appears in all seven Chronicles of Narnia books, though his role and the amount of time he spends on the page vary. Lewis explained that Aslan was not merely a coded version of a human religious figure; instead, he imagined how Christ might appear in a world populated by talking animals.