Bahrain Independence Day occurred on 15 August 1971, when the country declared independence from the British following a United Nations survey of the Bahraini population. The British announced the withdrawal of their troops east of Suez in the early 1960s.

Bahrain declared its independence on 15 August 1971, marked by the signing of a friendship treaty with the British that terminated previous agreements between the two sides.Although 15 August is the actual date on which Bahrain gained its independence from the British, the kingdom does not celebrate or mark that date. Instead, the state annually celebrates 16 December as National Day, to coincide with the day that late emir (ruler) Isa bin Salman Al Khalifa ascension to the throne. As such, 16 December is a national holiday and is usually celebrated with firework displays. The celebration is usually held at the Bahrain International Circuit.

Bahrain ( (listen) bar-AYN; Arabic: البحرين, romanized: al-Baḥrayn, locally [æl baħˈreːn] (listen)), officially the Kingdom of Bahrain, is an island country in Western Asia. It is situated on the Persian Gulf, and comprises a small archipelago made up of 50 natural islands and an additional 33 artificial islands, centered on Bahrain Island which makes up around 83 percent of the country's landmass. Bahrain is situated between Qatar and the northeastern coast of Saudi Arabia, to which it is connected by the King Fahd Causeway. According to the 2020 census, the country's population numbers 1,501,635, of which 712,362 are Bahraini nationals. Bahrain spans some 760 square kilometres (290 sq mi), and is the third-smallest nation in Asia after the Maldives and Singapore. The capital and largest city is Manama.

Bahrain is the site of the ancient Dilmun civilization. It has been famed since antiquity for its pearl fisheries, which were considered the best in the world into the 19th century. Bahrain was one of the earliest areas to be influenced by Islam, during the lifetime of Muhammad in 628 CE. Following a period of Arab rule, Bahrain was ruled by the Portuguese Empire from 1521 until 1602, when they were expelled by Shah Abbas I of the Safavid dynasty. In 1783, the Bani Utbah clan captured Bahrain from Nasr Al-Madhkur and it has since been ruled by the Al Khalifa royal family, with Ahmed al Fateh as Bahrain's first hakim.

In the late 1800s, following successive treaties with the British, Bahrain became a protectorate of the United Kingdom. In 1971, it declared independence. Formerly an emirate, Bahrain was declared an Islamic constitutional monarchy in 2002. In 2011, the country experienced protests inspired by the regional Arab Spring. Bahrain's ruling Al Khalifa royal family has been criticised for violating the human rights of groups including dissidents, political opposition figures, and its majority Shia Muslim population.Bahrain developed the first post-oil economy in the Persian Gulf, the result of decades of investing in the banking and tourism sectors; many of the world's largest financial institutions have a presence in the country's capital. It consequently ranks 42nd in the Human Development Index and is recognised by the World Bank as a high-income economy. Bahrain is a member of the United Nations, Non-Aligned Movement, Arab League, Organisation of Islamic Cooperation and the Gulf Cooperation Council.