Oceania
- American Samoa (unorganized, unincorporated territory of the United States)
- Governor - Peter Tali Coleman, Governor of American Samoa (1978–1985)
- Australia
- Monarch - Elizabeth II, Queen of Australia (1952–present)
- Governor-General - Sir Zelman Cowen, Governor-General of Australia (1977–1982)
- Prime Minister - Malcolm Fraser, Prime Minister of Australia (1975–1983)
- Christmas Island (external territory of Australia)
- Administrator -
- F.C. Boyle, Administrator of Christmas Island (1977–1980)
- Rendle McNeilage Holten, Administrator of Christmas Island (1980–1982)
- Administrator -
- Cocos (Keeling) Islands (external territory of Australia)
- Administrator - Charles Ivens Buffett, Administrator of Cocos (Keeling) Islands (1977–1981)
- Council Chairman - Parson bin Yapat, Chairman of the Cocos Islands Council (1979–1981)
- Norfolk Island (self-governing territory of Australia)
- Administrator - Peter Coleman, Administrator of Norfolk Island (1979–1981)
- Chief Minister - David Buffett, Chief Minister of Norfolk Island (1979–1986)
- Fiji
- Monarch - Elizabeth II, Queen of Fiji (1970–1987)
- Governor-General - Ratu Sir George Cakobau, Governor-General of Fiji (1973–1983)
- Prime Minister - Ratu Sir Kamisese Mara, Prime Minister of Fiji (1967–1987)
- French Polynesia (French overseas territory)
- High Commissioner - Paul Cousseran, High Commissioner of the Republic in French Polynesia (1977–1981)
- Guam (Insular area of the United States)
- Governor - Paul McDonald Calvo, Governor of Guam (1979–1983)
- Kiribati
- President - Ieremia Tabai, President of Kiribati (1979–1982)
- Nauru
- President - Hammer DeRoburt, President of Nauru (1978–1986)
- New Caledonia (French overseas territory)
- High Commissioner - Claude Charbonniaud, High Commissioner of New Caledonia (1978–1981)
- New Zealand
- Monarch - Elizabeth II, Queen of New Zealand (1952–present)
- Governor-General -
- Sir Keith Holyoake, Governor-General of New Zealand (1977–1980)
- Sir Ronald Davison, Administrator of the Government of New Zealand (1980)
- Sir David Beattie, Governor-General of New Zealand (1980–1985)
- Prime Minister - Robert Muldoon, Prime Minister of New Zealand (1972–1984)
- Cook Islands (Associated state of New Zealand)
- Queen's Representative - Sir Gaven Donne, Queen's Representative of the Cook Islands (1975–1984)
- Prime Minister - Tom Davis, Prime Minister of the Cook Islands (1978–1983)
- Niue (associated state of New Zealand)
- Premier - Robert Rex, Premier of Niue (1974–1992)
- Tokelau (dependent territory of New Zealand)
- Administrator - Frank Corner, Administrator of Tokelau (1975–1984)
- Papua New Guinea
- Monarch - Elizabeth II, Queen of Papua New Guinea (1975–present)
- Governor-General - Sir Tore Lokoloko, Governor-General of Papua New Guinea (1977–1983)
- Prime Minister -
- Michael Somare, Prime Minister of Papua New Guinea (1972–1980)
- Sir Julius Chan, Prime Minister of Papua New Guinea (1980–1982)
- Pitcairn Islands (British crown colony)
- Governor -
- Sir Harold Smedley, Governor of the Pitcairn Islands (1976–1980)
- Sir Richard Stratton, Governor of the Pitcairn Islands (1980–1984)
- Magistrate - Ivan Christian, Magistrate of the Pitcairn Islands (1975–1984)
- Governor -
- Solomon Islands
- Monarch - Elizabeth II, Queen of the Solomon Islands (1978–present)
- Governor-General - Sir Baddeley Devesi, Governor-General of the Solomon Islands (1978–1988)
- Prime Minister - Peter Kenilorea, Prime Minister of the Solomon Islands (1976–1981)
- Tonga
- Monarch - Tāufaʻāhau Tupou IV, King of Tonga (1965–2006)
- Prime Minister - Prince Fatafehi Tu'ipelehake, Prime Minister of Tonga (1965–1991)
- Trust Territory of the Pacific Islands (UN Trust Territory administered by the United States)
- High Commissioner - Adrian P. Winkel, High Commissioner of the Trust Territory of the Pacific Islands (1977–1981)
- Northern Mariana Islands (autonomous territory)
- Governor - Carlos S. Camacho, Governor of the Northern Mariana Islands (1978–1982)
- Marshall Islands (autonomous territory)
- President - Amata Kabua, President of the Marshall Islands (1979–1996)
- Micronesia (autonomous territory)
- President - Tosiwo Nakayama, President of Micronesia (1979–1987)
- Tuvalu
- Monarch - Elizabeth II, Queen of Tuvalu (1978–present)
- Governor-General - Sir Fiatau Penitala Teo, Governor-General of Tuvalu (1978–1986)
- Prime Minister - Toaripi Lauti, Prime Minister of Tuvalu (1975–1981)
- Vanuatu -
- the New Hebrides gained independence on 30 July 1980
- British Resident Commissioner - Andrew Stuart (1978–1980)
- French Resident Commissioner - Jean-Jacques Robert (1978–1980)
- President - Ati George Sokomanu, President of Vanuatu (1980–1984)
- Prime Minister - Walter Lini, Prime Minister of Vanuatu (1979–1991)
- Wallis and Futuna (French overseas territory)
- Administrator-Superior -
- Pierre Isaac, Administrator Superior of Wallis and Futuna (1979–1980)
- Robert Thil, Administrator Superior of Wallis and Futuna (1980–1983)
- President of the Territorial Assembly - Manuele Lisiahi, President of the Territorial Assembly of Wallis and Futuna (1978–1984)
- Administrator-Superior -
- Western Samoa
- Head of State - Malietoa Tanumafili II, O le Ao o le Malo of Western Samoa (1962–2007)
- Prime Minister - Tufuga Efi, Prime Minister of Western Samoa (1976–1982)
Read more about this topic: List Of State Leaders In 1980