TheCook Islands maintainsdiplomatic relations with various countries and is a member of multilateral organisations. While the country is infree association withNew Zealand, which can act on the Cook Islands' "delegated authority [...] to assist the Cooks Islands" in foreign affairs,[1] the Cook Islands nevertheless enters into treaty obligations and otherwise "interacts with the international community as a sovereign and independent state."[1]
In the 1980s the Cook Islands became a member of severalUnited Nations specialized agencies: theWorld Health Organization in 1984, theFood and Agriculture Organization andUNESCO in 1985, and theInternational Civil Aviation Organization in 1986. TheRepertory of Practice of United Nations Organs records that in 1988 New Zealand declared "that its future participation in international agreements would no longer extend to the Cook Islands..."[2] In 1991 the Cook Islands became a full member of the United Nations Conference on Environment and Development (UNCED) Preparatory Committee and the Intergovernmental Negotiating Committee for a Framework Convention on Climate Change (INC), which theRepertory of Practice describes as "further evidence that the international community had accepted the Cook Islands as a “State” under international law."[2] The United Nations Secretariat therefore "recognized the full treaty-making capacity of the Cook Islands" in 1992[2] and the Secretary-General, in his capacity as the depository of multilateral treaties, decided that the Cook Islands could participate in treaties that were open to "all states".[3]
The Cook Islands does not maintain an embassy in the United Kingdom.
The United Kingdom is not accredited to the Cook Islands through an embassy; the UK develops relations through itshigh commission in Wellington, New Zealand.[68]
The UK governed theCook Islands from 1888 to 1901, when the Cook Islands were transferred to New Zealand.[69]
Although the Cook Islands maintained a resident high commission in Canberra for some years in the 1990s, at present it has no diplomatic representation to Australia.
Australia's relationship with the Cook Islands focuses on shared membership of regional organisations, trade and investment, people-to-people links and security cooperation. The 2016 census records that a diaspora of at least 22,000 Cook Islands citizens live in Australia, including in Melbourne, Sydney and Perth.[71]
There have been regular exchanges of ministerial visits. Prime MinisterHenry Puna made an official visit to Australia in November 2019. Governor-GeneralDavid Hurley made an official visit to the Cook Islands in June 2023.[72]
Commonwealth of Nations – the Cook Islands are part of the Commonwealth, but is not a member state, being a dependency of New Zealand, whose Commonwealth membership covers the Cook Islands, Niue, and Tokelau, as well as New Zealand itself.
In November 2011, the Cook Islands were one of the eight founding members ofPolynesian Leaders Group, a regional grouping intended to cooperate on a variety of issues including culture and language, education, responses to climate change, and trade and investment.[79][80][81]
^abcdefghiMinistry of Foreign Affairs and Immigration (2015)."Pacific relations". Cook Islands Government. Archived fromthe original on 2014-10-13. Retrieved2015-10-08.
^"Ilhas Cook" (in Portuguese). Retrieved2 July 2022.
^Ministry of Foreign Affairs of the Turkish Republic (2011)."Türkiye–Cook Adaları Siyasi İlişkileri" [Turkey-Cook Islands Political Relations] (in Turkish). Archived fromthe original on 2016-02-18. Retrieved2015-10-09.
^"KOREA ESTABLISHES DIPLOMATIC RELATIONS WITH THE COOK ISLANDS". Ministry of Foreign Affairs, Republic of Korea. 25 February 2013.Archived from the original on 4 March 2016. Retrieved21 October 2014.The Cook Islands will mark the 190th country with which Korea has forged diplomatic relations.
^Anderson, Ewan W. (2003).International Boundaries: A Geopolitical Atlas, p. 595; Charney, Jonathan I.et al. (2005).International Maritime Boundaries, 5 vols, pp. 985–993.
^"China-Cook Islands". Embassy of the People's Republic of China in New Zealand. Retrieved16 February 2025.
^"Overseas Mission". Ministry of Foreign Affairs and Immigration, Cook Islands Government.Archived from the original on 1 March 2024. Retrieved18 April 2024.