The president of Burundi, officially the President of the Republic (French: Président de la République), is the head of state of the Republic of Burundi. The president is also commander-in-chief of the National Defence Force. The office of the presidency was established when Michel Micombero declared Burundi a republic on 28 November 1966. The first constitution to specify the powers and duties of the president was the constitution of 1974 adopted in 1976. The constitution, written by Micombero, affirmed Micombero's position as the first president of Burundi. The powers of the president currently derive from the 2005 constitution implemented as a result of the 2000 Arusha Accords after the Burundian Civil War. The current president since 18 June 2020 is Évariste Ndayishimiye.

The president's stated role is to represent Burundi's national unity and ensure that the laws and functions of the state are created and executed with full compliance in the constitution. The president is granted a variety of powers throughout the constitution. Title V establishes the executive powers granted to the president and Title VI establishes legislative powers granted to the president. The president has the power to appoint military commanders, ambassadors, magistrates, provincial governors and members of various national councils. The president also appoints all judges, including those of the Supreme Court and Constitutional Court. The president can organize government and can call for parliamentary sessions under extraordinary circumstances. In addition to promulgating legislation, the president has the power to propose and amend laws and can veto laws that parliament is unable to agree upon. The president can also amend the constitution. The president represents Burundi in international affairs by signing and ratifying its treaties. The president is the sole office to manage war, but needs approval from parliament and the National Council of Security to start wars. The president is the sole post that can authorize military action. The president is also the sole post to grant civil and military awards.

A presidential term is seven years, and a president can serve two terms. The president is assisted by two presidentially appointed vice-presidents; however, the 2018 Burundian constitutional referendum passed to eventually reduce the number of vice-presidents to one. The president is entitled to a pension after the end of their final term of office.

In 1966, Michel Micombero became a rallying force for opposition to king Ntare V of Burundi. When Ntare V promoted Micombero to the post of Prime Minister of Burundi, Micombero launched the November 1966 Burundian coup d'état. Micombero overthrew Ntare V and declared Burundi a republic and himself its president. Micombero formalized his role as president in his 1974 constitution formally adopted in 1976. The constitution guaranteed Micombero's presidency and established a one-party state led by the Union for National Progress (UPRONA). Political instability continued in Burundi. After the 1987 Burundian coup d'état, Pierre Buyoya seized the post of the presidency and implemented the 1992 constitution. The new constitution instituted multiparty elections in Burundi. Opposition to the change started the Burundian Civil War in 1993. In 1996, Buyoya returned to power and sought reconciliation and transition to democracy. In 2000, the Arusha Accords were signed by all three sides of the conflict, and between 2000 and 2005, Buyoya and Domitien Ndayizeye worked under the 2001 and 2004 transitional constitutions to transition Burundi to democracy. The 2005 constitution is a final product of the transition. The powers and duties of the presidency are enshrined within the 2005 constitution.

The president is both head of state. The president is tasked with representing the republic of Burundi, ensuring the integrity of the constitution, and executing the functions of the state and its laws. The president is assisted by two vice-presidents. The president shares many powers and duties with the two-vice presidents and can delegate powers, with exceptions, to them. The president arranges the government with approval from the vice-presidents. The president has the power to direct the agenda of the government and provides executive instructions for the two vice-presidents through presidential decree. The president appoints military commanders and ambassadors with approval from the Senate. The president dictates the agenda of the ambassadors and can recall them. The president also appoints provincial governors after approval from the two vice-presidents and confirmation from the Senate. The president has the power to declare a state of emergency after approval from the cabinet, the National Assembly, the Senate, the National Council of Security and the Constitutional Court.

The president serves as the commander-in-chief of the military. The president has the sole power to authorize use of the military and has the power to declare and end wars with approval of the National Assembly, Senate and National Council of Security.

The president has the power of pardon with approval from the two vice-presidents and the Superior Council of the Magistracy.

The president grants civil and military decorations. The president serves as the figure to whom all members of government are responsible.