Islands of Oceania: A Complete Subregional Breakdown

Four Subregions, Thousands of Islands

Oceania comprises the Pacific islands grouped into Australasia, Melanesia, Micronesia, and Polynesia. Political status varies: sovereign states, territories, associated states.

Australasia (Continental)

• Australia (continent/country)
• New Zealand (North, South, Stewart + 700 smaller)
• New Guinea (split: Indonesia west, Papua New Guinea east)
• Tasmania (Australian state)
• Kangaroo Island (SA), Melville Island (NT), etc.

Melanesia ("Black Islands") — Southwest Pacific

• Papua New Guinea (eastern New Guinea + 600 islands)
• Solomon Islands (992 islands)
• Vanuatu (83 islands)
• Fiji (333 islands)
• New Caledonia (France, sui generis collectivity)
• Norfolk Island (Australia external territory)

Micronesia ("Small Islands") — Northwest Pacific

• Guam (US territory)
• Northern Mariana Islands (US commonwealth)
• Federated States of Micronesia (Yap, Chuuk, Pohnpei, Kosrae)
• Marshall Islands (29 atolls)
• Kiribati (33 atolls/reefs, straddles equator & date line)
• Nauru (single raised atoll)
• Wake Island (US), Palau (sometimes grouped here).

Polynesia ("Many Islands") — Central/South Pacific Triangle

• Hawaii (US state)
• American Samoa (US territory)
• Samoa (independent)
• Tonga (kingdom)
• Tuvalu (9 atolls)
• Cook Islands (NZ associated)
• Niue (NZ associated)
• French Polynesia (France: Tahiti, Bora Bora, Marquesas, Tuamotus)
• Wallis & Futuna (France)
• Tokelau (NZ territory)
• Pitcairn Islands (UK)
• Easter Island (Rapa Nui) (Chile)

Notes

• Boundaries are cultural/geographic, not strictly tectonic.
• New Zealand is both Australasia (geologic) and Polynesia (cultural/Māori).
• Indonesia & Philippines are Southeast Asia, though eastern islands are Melanesian.