The president of the Federal Republic of Nigeria is the head of state and head of government of the Federal Republic of Nigeria. The president directs the executive branch of the federal government and is the commander-in-chief of the Nigerian Armed Forces.

The offices, powers, and titles of the head of state and the head of government were officially merged into the office of the presidency under the 1979 Constitution of Nigeria.

Executive power is vested in the president. The power includes the execution and enforcement of federal law and the responsibility to appoint federal executive, diplomatic, regulatory, and judicial officers. Based on constitutional provisions empowering the president to appoint and receive ambassadors and conclude treaties with foreign powers, and on subsequent laws enacted by the House, the presidency has primary responsibility for conducting foreign policy.

The president also plays a leading role in federal legislation and domestic policymaking. As part of the system of checks and balances, the Constitution gives the president the power to sign or veto federal legislation.

The president is directly elected in national elections to a four-year term, along with the vice president.

Muhammadu Buhari is the 15th and current president of Nigeria, having assumed office on 29 May 2015