First Bank of Nigeria Ltd. (FirstBank Nigeria) is a Nigerian bank and financial services firm. The bank is the largest retail lender in the nation, while most banks gather funds from consumers and loan it out to large corporations and multinationals, First Bank has created a small market for some of its retail clients. First Bank of Nigeria maintains a subsidiary in the United Kingdom, FBN Bank (UK), which has a branch in Paris. The Bank also has representative offices in Johannesburg, Beijing, Abu Dhabi, and Kinshasa. Total assets: US$18.6 billion (as of September 30, 2011).

FBN Holdings Plc. is the holding company for First Bank of Nigeria. FBN Holdings is a well-diversified financial institution with subsidiaries involved in capital market operations, insurance services, investment banking and asset management, private equity/venture capital, pension fund custody management, registrar services, trusteeship, mortgage and microfinance banking.