The president of the Republic of Belarus is the head of state of Belarus. The office was created in 1994 with the passing of the Constitution of Belarus by the Supreme Council. This replaced the office of Chairman of the Supreme Council as the head of state. The tasks of the president include executing foreign and domestic policy, defending the rights and general welfare of citizens and residents, and upholding the Constitution. The president is mandated by the Constitution to serve as a leader in the social affairs of the country and to act as its main representative abroad. The duties, responsibilities and other transitional clauses dealing with the presidency are listed in Chapter Three, Articles 79 through 89, of the Constitution.

The term for the president is five years, but due to a 1996 referendum, the election that was supposed to occur in 1999 was pushed back to 2001. Under the 1994 constitution, the president of Belarus could only serve for two terms, but due to a change in the constitution, term limits were eliminated. In the 2022 constitutional referendum, a limit of two terms was reimposed, though only on "newly elected presidents". During the course of the office, elections were held in 1994, 2001, 2006, 2010, 2015, 2020 and 2025. Alexander Lukashenko is currently the only person to have been president of Belarus since the position was established in 1994. The presidential office is located in the Palace of the Republic in the capital Minsk, while the presidential residence is located in Zaslawye, near the capital.

Lukashenko heads an authoritarian government and has often been referred to as "Europe's last dictator". Elections are not considered to be free and fair by international monitors, opponents of the regime are repressed, and the media is not free.

Belarus first declared independence in early 1918 as the Belarusian Democratic Republic. Its head of state was the president of a provisional supreme governing body, the Rada of the Belarusian Democratic Republic. In 1919, the Soviet Red Army forced the Rada of the Belarusian Democratic Republic into exile where the Rada still exists, now led by President Ivonka Survilla. Under Soviet rule, the de facto leader of the Byelorussian SSR was the first secretary of the Communist Party of Byelorussia, the only legal party in Soviet Belarus.^{[citation needed]}

The Republic of Belarus was formed in 1991 shortly after declaring itself independent of the Soviet Union. From independence until passage of the Constitution in 1994, the chairman of the Supreme Soviet was the head of state and the prime minister as the head of government. When the office of the presidency was created, the role of the prime minister was reduced to assisting the president and resulted in the dissolution of the Supreme Soviet, along with its chairman, in 1996.

In the first set of elections for the office of president, the prime minister of Belarus, Vyacheslav Kebich, was defeated in a runoff vote by Alexander Lukashenko, resulting in Lukashenko becoming the first president. In elections of 2001 and 2006, which were contested by international observers, Western powers and internal opposition parties due for failing to meet democratic and fair standards, the incumbent Lukashenko defeated the other candidates within the first ballot. As of 24 September 2025^[update], he is the only person to have served as President of Belarus.

Article 79 of the Constitution of Belarus gives the status of head of state to the president of the Republic of Belarus. They are also considered the guardian of the Constitution and the rights and freedoms of those who claim Belarusian citizenship or residency. The president is the personification of unification of the Belarusian state when conducting foreign or internal affairs and shall be the main representative when dealing with other nations or international organizations. The president is also entrusted with the safety, prosperity and stability of the country and acts as an intermediary between the bodies of the national government.

During their tenure in office, the president is barred from formal membership in a political party.