Oceania is a vast, arbitrarily defined expanse of the world where the Pacific Ocean – rather than land borders – connects the nations. It is home to glistening white beaches, coconut palms swaying in the breeze, beautiful coral reefs, and rugged volcanic islands rising out of the blue ocean. Its diverse nations have some of the world's most international cities, and some of its most remote villages.

It incorporates the areas often known as Polynesia, Melanesia and Micronesia, as well as Australia, New Zealand, and surrounding islands.