What are the names of the three regions that comprise Oceania

Oceania are the islands throughout the Pacific Ocean.

The three regions that comprise Oceania are: Micronesia, Melanesia and Polynesia. All these are island regions.

Micronesia is a group of small islands in the western Pacific Ocean.

Melanesia is the group of islands from New Guinea island in the southwestern Pacific Ocean to the Arafura Sea.

Polynesia is a group of islands scattered over the central and southern Pacific Ocean.