Contrary to the popular metro belief that China owns Nigeria because of the Nigeria-China commercial loan agreement. A report by the World Bank placed Nigeria among the top 10 countries with the highest debt risk exposure. Nigeria is fifth with $11.7 billion debt exposure, behind India ($22 billion), Bangladesh ($18.1 billion), Pakistan ($16.4 billion), and Vietnam ($14.1 billion).
Irrespective of the debt, Nigeria is an independent country. Therefore, no country owns Nigeria. There are 54 countries in Africa today, according to the United Nations of which Nigeria located in West Africa is one of them. Nigeria is the most populous and richest of all the African countries.
If however, you are asking who owns Nigeria before her independence, The answer is Great Britain. Nigeria was colonized by the British in 1884 and the colony is established at the Berlin conference which divides Africa into European powers. The British targeted Nigeria because of its resources. The period of British rule lasted until 1960 when an independence movement led to the country being granted independence.
Since 1960, Nigeria has been an independent country governed by a federal system of government is composed of three distinct branches: legislative, executive, and judicial, whose powers are vested by the constitution of Nigeria in the national assembly, the president, and the federal courts, including the supreme court, respectively