The fantasy land in C.S. Lewis’s Narnia novels is called Narnia.
Narnia is the central setting of Lewis’s seven-book series. It is a world populated by talking animals, humans, dwarfs, giants, witches, and other mythical creatures. Time does not pass there at the same rate as in the ordinary human world, which allows characters to experience very different spans of history when they travel between worlds.
The word can refer both to the country and, more broadly, to the fictional world surrounding it. The series also includes locations such as Archenland, Calormen, and the Wood between the Worlds. These neighboring settings help make the books larger than a single kingdom.
Narnia is sometimes compared with Middle-earth because both are famous fantasy settings, but Middle-earth belongs to J.R.R. Tolkien’s writings. Neverland and Westeros likewise come from entirely different authors and fictional traditions.