Apia is the capital and the largest city of Samoa. The city is located on the central north coast of Upolu, Samoa's second largest island. Apia is the only 'city' in Samoa and falls within the political district (itūmālō) of Tuamasaga.

The Apia Urban Area has a population of 37,708 (2006 Census) and is generally referred to as the City of Apia. The geographic boundaries of Apia Urban Area is mainly from Letogo village to the new industrialized region of Apia known as Vaitele.

Apia was originally a small village (1800 population is 304), from which the country's capital took its name. Apia village still exists within the larger modern capital of Apia which has grown into a sprawling urban area with many villages. Like every other settlement in the country, Apia village has its own matai chiefly leaders and fa'alupega (geneaology & customary greetings) according to fa'a Samoa.

The modern capital Apia was founded in the 1850s and has been the official capital of Samoa since 1959.

The harbor was also the site of an infamous 15 March 1889 naval standoff in which 7 ships from Germany, the US, and Britain refused to leave harbor while a typhoon was clearly approaching, lest the first moved would lose face. All the ships were sunk, except the British cruiser Calliope, which barely managed to leave port at 1 mile per hour and ride out the storm. Nearly 200 American and German lives were lost, as well as 6 ships sunk or beyond repair.

Samoa (ⁱ/səˈmoʊ.ə/; Samoan: Sāmoa, IPA: [ˌsaːˈmoa]), officially the Independent State of Samoa (Samoan: Malo Sa'oloto Tuto'atasi o Sāmoa), formerly known as Western Samoa, is a country encompassing the western part of the Samoan Islands in the South Pacific Ocean. It became independent from New Zealand in 1962. The two main islands of Samoa are Upolu and one of the biggest islands in Polynesia, Savai'i. The capital city, Apia, and Faleolo International Airport are situated on the island of Upolu.

Samoa was admitted to the United Nations on 15 December 1976. The entire island group, inclusive of American Samoa, was called Navigators Islands by European explorers before the 20th century because of the Samoans' seafaring skills.

The oldest date so far from pre-historic remains in Samoa has been calculated by New Zealand scientists to a likely true age of circa 3,000 years ago from a Lapita site at Mulifanua during the 1970s.

The origins of the Samoans is closely linked to modern research about Polynesia in various scientific disciplines such as genetics, linguistics and anthropology. Scientific research is ongoing although a number of different theories exist; including one proposing that the Samoans originated from Austronesian predecessors during the terminal eastward Lapita expansion period from Southeast Asia and Melanesia between 2,500 and 1,500 BCE. The Samoan origins are currently being reassessed due to new scientific evidence and carbon dating findings from 2003 and onwards.