Nigeria recognizes neither same-sex marriages nor civil unions for same-sex couples. Homosexuality can land men up to 14 years in prison in Southern Nigeria and can even result in capital punishment for men in areas under Sharia Islamic Law. Proposals to constitutionally ban same-sex marriage that are compacted with severe penalties to those convicted of performing or participating in such have twice surfaced.

On January 18, 2007 the Federal Executive Council approved a law, Same Sex Marriage (Prohibition) Act 2006, prohibiting same sex marriages and sent it to the National assembly for urgent action. According to the Minister of Justice, Chief Bayo Ojo, the law was pushed by President Olusegun Obasanjo following the international conference on HIV/AIDS (ICASA) in 2005.

The proposed bill calls for five years imprisonment for anyone who undergoes, "performs, witnesses, aids, or abets" a same-sex marriage. It would also prohibit any display of a "same-sex amorous relationship" and adoption of children by gays or lesbians. The bill is expected to receive little or no opposition in Parliament. The same-sex marriage ban would make Nigeria the second country in Africa to criminalize such unions. In 2005, the Ugandan constitution was amended to ban same-sex marriage.The same bill would also call for five years imprisonment for involvement in public advocacy or associations supporting the rights of lesbian and gay people. Included in the bill is a proposal to ban any form of relationship with a gay person. The intent of the bill is to ban anything remotely associated with being 'gay' or just gay in the country.In February 2006, the United States State Department condemned the proposal. In March 2006, 16 international human rights groups signed a letter condemning the bill, calling it a violation of the freedoms of expression, association and assembly guaranteed by international law as well as by the African Charter on Human and Peoples' Rights and a barrier to the struggle against the spread of AIDS. Some sources claim that Nigeria has the world's third-highest population of persons with AIDS: 3.6 million Nigerians are infected with HIV.

Nigeria ( ), officially the Federal Republic of Nigeria, is a country in West Africa. It is the most populous country in Africa. It is geographically situated between the Sahel to the north and the Gulf of Guinea to the south in the Atlantic Ocean. It covers an area of 923,769 square kilometres (356,669 sq mi), with a population of over 211 million. Nigeria borders Niger in the north, Chad in the northeast, Cameroon in the east, and Benin in the west. Nigeria is a federal republic comprising 36 states and the Federal Capital Territory, where the capital, Abuja, is located. The largest city in Nigeria is Lagos, one of the largest metropolitan areas in the world and the second-largest in Africa.

Nigeria has been home to several indigenous pre-colonial states and kingdoms since the second millennium BC, with the Nok civilization in the 15th century BC marking the first internal unification in the country. The modern state originated with British colonialization in the 19th century, taking its present territorial shape with the merging of the Southern Nigeria Protectorate and Northern Nigeria Protectorate in 1914 by Lord Lugard. The British set up administrative and legal structures while practising indirect rule through traditional chiefdoms in the Nigeria region. Nigeria became a formally independent federation on October 1, 1960. It experienced a civil war from 1967 to 1970, followed by a succession of democratically elected civilian governments and military dictatorships, until achieving a stable democracy in the 1999 presidential election; the 2015 election was the first time an incumbent president had lost re-election.Nigeria is a multinational state inhabited by more than 250 ethnic groups speaking 500 distinct languages, all identifying with a wide variety of cultures. The three largest ethnic groups are the Hausa in the north, Yoruba in the west, and Igbo in the east, together comprising over 60% of the total population. The official language is English, chosen to facilitate linguistic unity at the national level. Nigeria's constitution ensures freedom of religion and it is home to some of the world's largest Muslim and Christian populations, simultaneously. Nigeria is divided roughly in half between Muslims, who live mostly in the north, and Christians, who live mostly in the south; indigenous religions, such as those native to the Igbo and Yoruba ethnicities, are in the minority.Nigeria is a regional power in Africa, a middle power in international affairs, and is an emerging global power. Nigeria's economy is the largest in Africa, the 25th-largest in the world by nominal GDP, and 25th-largest by PPP. Nigeria is often referred to as the Giant of Africa owing to its large population and economy and is considered to be an emerging market by the World Bank. However, the country ranks very low in the Human Development Index and remains one of the most corrupt nations in the world. Nigeria is a founding member of the African Union and a member of many international organizations, including the United Nations, the Commonwealth of Nations, NAM, the Economic Community of West African States, and OPEC. It is also a member of the informal MINT group of countries and is one of the Next Eleven economies.