The talking lion in C.S. Lewis’s Narnia books is Aslan.
Aslan is the central sovereign and creator figure of the fictional world of Narnia. He appears throughout the series, guiding characters, opposing evil, and restoring order. His name is derived from the Turkish word for “lion.”
The character is especially prominent in The Lion, the Witch and the Wardrobe, where he sacrifices himself to save Edmund Pevensie and is later restored to life. Lewis’s Christian beliefs strongly influenced Aslan’s symbolism, although the character also functions within the story as Narnia’s own unique ruler and creator.
Aslan is sometimes confused with individual human or animal characters such as Rilian, Puddleglum, or Mr. Tumnus. Those figures belong to Narnia’s cast, but Aslan is the series’ defining lion character.