Which large island country is called Island of the Moon by its natives?

Comoros, Island(S) of the Moon, in the Arabic language.

Romantic the name may be, but the Comoros, an archipelago of four large islands halfway between the coast of East Africa and the northern tip of the island of Madagascar, has a most unsavoury reputation in the last three decades. With 600,000 people squeezed onto 2170 sq km, the Comoros are a very small and crowded island chain, perhaps with more coups per capita per year than any country in the world.

http://weecheng.com/africa/indianocean/comoros/cm.htm

https://en.wikipedia.org/wiki/Comoros