Nauru (), officially the Republic of Naoero (), is an island country and microstate in the South Pacific Ocean. It lies within the Micronesia subregion of Oceania, with its nearest neighbour being Banaba (part of Kiribati) about to the east. Yaren is its de facto capital.
With an area of only , Nauru is the third-smallest country in the world, as well as the smallest member state of the Commonwealth of Nations by both area and population. Its population of about 12,000 is the world's third-smallest (not including colonies or overseas territories). Nauru is a member of the United Nations, the Commonwealth of Nations, and the Organisation of African, Caribbean and Pacific States.
First settled by Micronesians circa 1000 BCE, Nauru was annexed and claimed as a colony by the German Empire in the late 19th century. It was occupied by Australia during World War I and subsequently became a League of Nations mandate administered by Australia with New Zealand and the United Kingdom as co-trustees. Nauru was occupied by Japan for three years during World War II and became a United Nations trust territory after the war's end. Nauru gained its independence from Australia in 1968. At various points since 2001, it has accepted aid from the Australian Government in exchange for hosting the Nauru Regional Processing Centre, a controversial offshore Australian immigration detention facility. As a result of heavy dependence on Australia, some sources have identified Nauru as an Australian client state.
Nauru is a phosphate-rock island with rich deposits near the surface, as a result of which most of its interior was profitably, but destructively strip-mined for about a century starting in 1900. The island's viable phosphate reserves were exhausted in the 1990s and, in a classic example of the resource curse, mismanagement of the island's accumulated mining wealth resulted in serious financial troubles through the 2000s. Nauru's economy gradually recovered in the 2010s.
Name and etymology Nauru's name in the Nauruan language is Naoero. The etymology of the island's name is uncertain. German ethnologist Paul Hambruch speculated that Nauru was a contraction of a Nauruan phrase a-nuau-a-a-ororo, supposedly meaning "I go to the beach". Hambruch's theory was included in the Deutsches Kolonial-Lexikon of 1920, but linguist Alois Kayser later stated that this sentence was ungrammatical in Nauruan and an example of a folk etymology.
Early spellings used during the colonial period included Naura, Nauru, Nawodo and Onawero. When a German protectorate was proclaimed in 1888, Nauru was adopted as the official name in the Reichskommissar's report, subsequently becoming the standard spelling in both English and German. The island had previously been known in English as Pleasant Island. On independence in 1968, the Constitution of Nauru designated "Republic of Nauru" as the official English name. In May 2026, a constitutional amendment was passed to change the official English name to "Republic of Naoero", matching the spelling in the Nauruan language. On 26 June 2026, Nauru informed the United Nations that it had changed its official name to the Republic of Naoero.
History
Nauru was first settled by Micronesians at least 3,000 years ago, and there is evidence of possible Polynesian influence. Comparatively little is known of Nauruan prehistory, although the island is believed to have had a long period of isolation, which accounts for the distinct language that developed among the inhabitants. There were traditionally twelve clans or tribes on Nauru, which are represented in the twelve-pointed star on the country's flag. Traditionally, Nauruans traced their descent matrilineally. Inhabitants practised aquaculture: they caught juvenile milkfish (known as ibija in Nauruan), acclimatised them to freshwater, and raised them in Buada Lagoon, providing a reliable food source. The other locally grown components of their diet included coconuts and pandanus fruit.
In 1798, the British sea captain John Fearn, on his trading ship Hunter (300 tons), became the first Westerner to report sighting Nauru, calling it "Pleasant Island" because of its attractive appearance. From at least 1826, Nauruans had regular contact with Europeans on whaling and trading ships who called for provisions and fresh drinking water. The last whaler to call during the Age of Sail visited in 1904.
Around this time, deserters from European ships began to live on the island. The islanders traded food for alcoholic palm wine and firearms. The firearms were used during the 10-year Nauruan Civil War that began in 1878.
After an agreement with Great Britain, Germany annexed Nauru in 1888 and incorporated it into the Marshall Islands Protectorate for administrative purposes. The arrival of the Germans ended the civil war, and kings were established as rulers of the island. King Auweyida was the most widely known. Christian missionaries from the Gilbert Islands arrived in 1888. The Germans ruled Nauru for almost three decades. Robert Rasch, a German trader who married a 15-year-old Nauruan girl, was the first administrator, appointed in 1890.
In 1900, phosphate was discovered on Nauru by the prospector Albert Fuller Ellis. The Pacific Phosphate Company began to exploit the reserves in 1906 by agreement with Germany, exporting its first shipment in 1907. In 1914, following the outbreak of World War I, Nauru was captured and occupied by Australian troops. The Treaty of Versailles placed Nauru under a League of Nations mandate personally granted to King George V. The Nauru Island Agreement was signed in 1919 between Australia, New Zealand and the United Kingdom, providing for the continued administration of the island by Australia and extraction of the phosphate deposits by an intergovernmental British Phosphate Commission (BPC). The terms of the League of Nations mandate were drawn up in 1920.
The island experienced an influenza epidemic and ongoing colonial strife through the early 20th century, with a mortality rate of 18 per cent among native Nauruans. In 1923, the League of Nations gave Australia a trustee mandate over Nauru, with the United Kingdom and New Zealand as co-trustees. On 6 and 7 December 1940, the German auxiliary cruisers Komet and Orion sank five supply ships in the vicinity of Nauru. Komet then shelled Nauru's phosphate mining areas, oil storage depots, and the shiploading cantilever.
Japanese troops occupied Nauru on 25 August 1942. The Japanese built two airfields which were bombed for the first time on 25 March 1943, preventing food supplies from being flown to Nauru. The Japanese deported 1,200 Nauruans to work as labourers in the Chuuk Islands, which were also occupied by Japan. Nauru was finally taken back from the Japanese on 13 September 1945, when commander Hisayaki Soeda surrendered the island to the Australian Army and the Royal Australian Navy. The surrender was accepted by Brigadier J. R. Stevenson, who represented Lieutenant General Vernon Sturdee, the commander of the First Australian Army, aboard the warship HMAS Diamantina.The Times, 14 September 1945 Arrangements were made to repatriate from Chuuk the 745 Nauruans who survived Japanese captivity there. They were returned to Nauru by the BPC ship Trienza in January 1946.
In 1947, a trusteeship was established by the United Nations, with Australia, New Zealand, and the United Kingdom as trustees. Under those arrangements, the UK, Australia, and New Zealand were a joint administering authority. The Nauru Island Agreement provided for the first administrator to be appointed by Australia for five years, leaving subsequent appointments to be decided by the three governments. In practice, administrative power was exercised by Australia alone.
The 1948 Nauru riots occurred when Chinese mining workers went on strike over pay and conditions. The Australian administration imposed a state of emergency with Native Police and armed volunteers of locals and Australian officials being mobilised. This force, using sub-machine guns and other firearms, opened fire on the Chinese workers, killing two and wounding sixteen. About 50 of the workers were arrested; two of them were bayoneted to death while in custody. The trooper who bayoneted the prisoners was charged but later acquitted on grounds that the wounds were "accidentally received." The governments of the Soviet Union and China made official complaints against Australia at the United Nations over this incident.
In 1964, it was proposed to relocate the population of Nauru to Curtis Island off the coast of Queensland, Australia. By that time, Nauru had been extensively mined for phosphate by companies from Australia, Britain, and New Zealand, damaging the landscape so much that it was thought the island would be uninhabitable by the 1990s. Rehabilitating the island was seen as financially impossible. In 1962, Australian Prime Minister Robert Menzies said that the three countries involved in the mining had an obligation to provide a solution for the Nauruan people, and proposed finding a new island for them. In 1963, the Australian Government proposed to acquire all the land on Curtis Island (which was considerably larger than Nauru) and then offer the Nauruans freehold title over the island and that the Nauruans would become Australian citizens. The cost of resettling the Nauruans on Curtis Island was estimated to be (A$ in ), which included housing and infrastructure and the establishment of pastoral, agricultural, and fishing industries. However, the Nauruan people did not wish to become Australian citizens and wanted to be given sovereignty over Curtis Island to establish themselves as an independent state; Australia would not agree. The Nauruans chose instead to become a sovereign state operating its own mines on the island of Nauru.
In January 1966, Nauru became self-governing. Following negotiations with the Australian government, the parliament of Australia passed the Nauru Independence Act 1967 allowing for Nauru's independence on 31 January 1968, after a constitutional convention and proclamation of the new constitution of Nauru. Independence leader Hammer DeRoburt was subsequently elected as the inaugural president. In 1967, the new government of Nauru purchased the assets of the British Phosphate Commissioners, and in June 1970, control passed to the locally owned Nauru Phosphate Corporation (NPC). Income from the mines made Nauruans among the richest people in the world. In 1989, Nauru took legal action against Australia in the International Court of Justice over Australia's administration of the island, particularly Australia's failure to remedy the environmental damage caused by phosphate mining. Certain Phosphate Lands: Nauru v. Australia led to an out-of-court settlement to rehabilitate the mined-out areas of Nauru.
In response to the COVID-19 pandemic, a state of emergency was declared in Nauru on 17 March 2020. It did not announce its first confirmed diagnoses on the island until two years later, on 2 April 2022. One COVID death was officially recorded on the island through the subsequent outbreak, that of Commonwealth Games athlete Reanna Solomon on 1 July.
In mid-2026, the country officially renamed itself the Republic of Naoero.
Geography
Nauru is a , oval-shaped island in the southwestern Pacific Ocean. The island is surrounded by a fringing coral reef, which is exposed at low tide and dotted with pinnacles. The presence of the reef has prevented the establishment of a seaport, although channels in the reef allow small boats access to the island. A fertile coastal strip wide lies inland from the beach.
Coral cliffs surround Nauru's central plateau. The highest point of the plateau, Command Ridge, is above sea level.