Oceania
- American Samoa (unorganized, unincorporated territory of the United States)
- Governor - Togiola Tulafono, Governor of American Samoa (2003–present)
- Australia
- Monarch - Elizabeth II, Queen of Australia (1952–present)
- Governor-General - Michael Jeffery, Governor-General of Australia (2003–2008)
- Prime Minister - John Howard, Prime Minister of Australia (1996–2007)
- Christmas Island (external territory of Australia)
- Administrator - Evan Williams, Administrator of Christmas Island (2003–2005)
- Shire President - Gordon Thomson, Shire president of Christmas Island (2003–2011)
- Cocos (Keeling) Islands (external territory of Australia)
- Administrator - Evan Williams, Administrator of Cocos (Keeling) Islands (2003–2005)
- Shire President - Ronald Grant, Shire president of Cocos (Keeling) Islands (2001–2007)
- Norfolk Island (self-governing territory of Australia)
- Administrator - Grant Tambling, Administrator of Norfolk Island (2003–2007)
- Chief Minister - Geoffrey Robert Gardner, Chief Minister of Norfolk Island (2001–2006)
- Fiji
- President - Ratu Josefa Iloilo, President of Fiji (2000–2009)
- Prime Minister - Laisenia Qarase, Prime Minister of Fiji (2001–2006)
- French Polynesia (French overseas collectivity)
- High Commissioner -
- Michel Mathieu, High Commissioner of the Republic in French Polynesia (2001–2005)
- Jacques Michaut, Acting High Commissioner of the Republic in French Polynesia (2005)
- Anne Boquet, High Commissioner of the Republic in French Polynesia (2005–2008)
- President -
- Gaston Flosse, President of French Polynesia (2004–2005)
- Oscar Temaru, President of French Polynesia (2005–2006)
- High Commissioner -
- Guam (Insular area of the United States)
- Governor - Felix Perez Camacho, Governor of Guam (2003–2011)
- Kiribati
- President - Anote Tong, President of Kiribati (2003–present)
- Marshall Islands
- President - Kessai Note, President of the Marshall Islands (2000–2008)
- Micronesia
- President - Joseph J. Urusemal, President of Micronesia (2003–2007)
- Nauru
- President - Ludwig Scotty, President of Nauru (2004–2007)
- New Caledonia (Sui Generis Collectivity of France)
- High Commissioner -
- Daniel Constantin, High Commissioner of New Caledonia (2002–2005)
- Louis Le Franc, Acting High Commissioner of New Caledonia (2005)
- Michel Mathieu, High Commissioner of New Caledonia (2005–2007)
- President of the Government - Marie-Noëlle Thémereau, President of the Government of New Caledonia (2004–2007)
- High Commissioner -
- New Zealand
- Monarch - Elizabeth II, Queen of New Zealand (1952–present)
- Governor-General - Dame Silvia Cartwright, Governor-General of New Zealand (2001–2006)
- Prime Minister - Helen Clark, Prime Minister of New Zealand (1999–2008)
- Cook Islands (Associated state of New Zealand)
- Queen's Representative – Sir Frederick Tutu Goodwin, Queen's Representative of the Cook Islands (2001–present)
- Prime Minister - Jim Marurai, Prime Minister of the Cook Islands (2004–2010)
- Niue (associated state of New Zealand)
- Premier - Young Vivian, Premier of Niue (2002–2008)
- Tokelau (dependent territory of New Zealand)
- Administrator - Neil Walter, Administrator of Tokelau (2003–2006)
- Head of Government -
- Patuki Isaako, Head of Government of Tokelau (2004–2005)
- Pio Tuia, Head of Government of Tokelau (2005–2006)
- Northern Mariana Islands (Commonwealth of the United States)
- Governor - Juan Babauta, Governor of the Northern Mariana Islands (2002–2006)
- Palau
- President - Tommy Remengesau, President of Palau (2001–2009)
- Papua New Guinea
- Monarch - Elizabeth II, Queen of Papua New Guinea (1975–present)
- Governor-General - Sir Paulias Matane, Governor-General of Papua New Guinea (2004–2010)
- Prime Minister - Sir Michael Somare, Prime Minister of Papua New Guinea (2002–2011)
- Pitcairn Islands (British overseas territory)
- Governor - Richard Fell, Governor of the Pitcairn Islands (2001–2006)
- Commissioner - Leslie Jacques, Commissioner of the Pitcairn Islands (2003–present)
- Mayor - Jay Warren, Mayor of the Pitcairn Islands (2004–present)
- Samoa
- Head of State - Malietoa Tanumafili II, O le Ao o le Malo of Samoa (1962–2007)
- Prime Minister - Tuilaepa Aiono Sailele Malielegaoi, Prime Minister of Samoa (1998–present)
- Solomon Islands -
- Monarch - Elizabeth II, Queen of the Solomon Islands (1978–present)
- Governor-General - Sir Nathaniel Waena, Governor-General of the Solomon Islands (2004–2009)
- Prime Minister - Sir Allan Kemakeza, Prime Minister of the Solomon Islands (2001–2006)
- Tonga
- Monarch - Tāufaʻāhau Tupou IV, King of Tonga (1965–2006)
- Prime Minister - Prince Lavaka Ata 'Ulukalala, Prime Minister of Tonga (2000–2006)
- Tuvalu
- Monarch - Elizabeth II, Queen of Tuvalu (1978–present)
- Governor-General -
- Faimalaga Luka, Governor-General of Tuvalu (2003–2005)
- Filoimea Telito, Governor-General of Tuvalu (2005–2010)
- Prime Minister - Maatia Toafa, Prime Minister of Tuvalu (2004–2006)
- Vanuatu -
- President - Kalkot Mataskelekele, President of Vanuatu (2004–2009)
- Prime Minister - Ham Lini, Prime Minister of Vanuatu (2004–2008)
- Wallis and Futuna (French overseas collectivity)
- Administrator-Superior -
- Christian Job, Administrator Superior of Wallis and Futuna (2002–2005)
- Xavier de Furst, Administrator Superior of Wallis and Futuna (2005–2006)
- President of the Territorial Assembly -
- Patalione Kanimoa, President of the Territorial Assembly of Wallis and Futuna (2001–2005)
- Apeleto Likuvalu, President of the Territorial Assembly of Wallis and Futuna (2005)
- Emeni Simete, President of the Territorial Assembly of Wallis and Futuna (2005–2007)
- Administrator-Superior -
Read more about this topic: List Of State Leaders In 2005