Islands of the Central and South Pacific: Oceania

The vast expanse of islands across the central and southern Pacific Ocean is collectively known as Oceania. This geographic region encompasses thousands of islands grouped into three major subregions:

Melanesia (Southwest Pacific)

• Papua New Guinea
• Solomon Islands
• Vanuatu
• Fiji
• New Caledonia (France)

Micronesia (Northwest Pacific)

• Guam (USA)
• Kiribati
• Marshall Islands
• Federated States of Micronesia
• Nauru
• Palau
• Northern Mariana Islands (USA)

Polynesia (Central/East Pacific)

• New Zealand
• Samoa
• American Samoa (USA)
• Tonga
• Cook Islands (NZ)
• French Polynesia (France) — Tahiti, Bora Bora, etc.
• Tuvalu
• Tokelau (NZ)
• Niue (NZ)
• Wallis and Futuna (France)
• Pitcairn Islands (UK)
• Easter Island / Rapa Nui (Chile)
• Hawaii (USA)

Australasia

Sometimes included in Oceania, sometimes treated separately:

• Australia
• New Zealand (also Polynesian culturally)
• New Guinea (split: Papua New Guinea + Indonesian Papua)

Oceania spans both hemispheres, covers ~8.5 million km² land area across ~30 million km² ocean, and hosts ~44 million people. Cultures share Austronesian roots but developed distinctively across immense distances.