This is the list of Chief Secretaries of the Oceania Union. They serve five-year terms which are renewable only once.
| Name | Picture | Term began | Term ended | Previous position | Nationality |
|---|---|---|---|---|---|
| David K. Kawananakoa (Acting, then Permanent) |
|
5 April 1955 | 5 April 1965 | President of Hawaii (1946-1954) |  Hawaiian
|
| Kanson Arata (Acting) |
|
5 April 1965 | 20 April 1965 | Member of the Oceania Council | Hawaiian
|
| Sidney Holland | 
|
20 April 1965 | 20 April 1970 | Prime Minister of New Zealand (1949–1957) |  New Zealander
|
| George Cakobau | 
|
20 April 1970 | 20 April 1980 | Prince of Fiji |  Fijian
|
| John Guise | 
|
20 April 1980 | 20 April 1985 | Governor-General of Melanesia (1975–1979) |  Melanesian
|
| Bailey Olter | 
|
20 April 1985 | 20 April 1990 | Vice-President of Micronesia (1983-1985) |  Micronesian
|
| John Guise |
|
20 April 1990 | 20 April 1995 | Chief Secretary of the Oceania Union (1980–1985) | Melanesian
|
| Tomasi Puapua | 
|
20 April 1995 | 20 April 2000 | Prime Minister of Tuvalu (1981-1989) |  Tuvaluan
|
| Teburoro Tito | 
|
20 April 2000 | 20 April 2010 | President of Kiribati (1994-2003) |  I-Kiribati
|
| ʻAhoʻeitu ʻUnuakiʻotonga Tukuʻaho Tupou VI |
|
20 April 2010 | 20 April 2020 | Crown Prince of Tonga (2006–2012) |  Tongan
|
| Tūheitia Potatau Te Wherowhero VII | 
|
20 April 2020 | Incumbent | King of the Maori (2006-) | New Zealander
|
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