C.S. Lewis uses the name Aslan for the great lion in Narnia.
Aslan is the central guiding figure of The Chronicles of Narnia. He creates Narnia in The Magician’s Nephew, appears as its protector and king, and plays a decisive role in several of the series’ major conflicts. His name comes from the Turkish word for “lion.”
Aslan is frequently interpreted as a literary representation of Jesus Christ, especially because of his sacrificial death and return in The Lion, the Witch and the Wardrobe. Lewis described the Narnia books as imaginative retellings rather than direct allegories, so the stories also function as independent fantasy narratives.
Aslan is not the same character as King Caspian, Prince Rilian, or Puddleglum. Those are separate Narnian characters. Liam Neeson voiced Aslan in the 2005 film adaptation and its two sequels.