Aslan is the lion character created by C.S. Lewis for The Chronicles of Narnia.
Aslan appears throughout the series as Narnia’s creator, king, judge, and guide. His name comes from the Turkish word for “lion.” Lewis presents him as both powerful and compassionate, and the character is widely read as carrying Christian symbolism, especially in The Lion, the Witch and the Wardrobe.
In that book, Aslan gives his life in exchange for Edmund Pevensie after Edmund’s betrayal. He returns to life through a deeper magic connected with sacrifice and redemption. Lewis’s fictional treatment is not a literal retelling of the Gospels, but it uses imagery and themes familiar from Christian theology.
Aslan is sometimes confused with other prominent Narnian figures. Reepicheep is a courageous mouse, Puddleglum is a marsh-wiggle, and Mr. Tumnus is a faun. None of those characters is the series’ lion king.