Mykolas Sleževičius was a Lithuanian lawyer, political and cultural figure, and journalist. One of the most influential figures in inter-war Lithuania, he served as the prime minister of Lithuania on three occasions. Taking the helm of the government at a difficult time in 1918 and again in 1919, Sleževičius has been credited with preparing Lithuania for the fights to come and for laying the foundations of the fledgling state.

The prime minister of Lithuania is the head of the government of Lithuania. The prime minister is Lithuania's head of government and is appointed by the president with the assent of the Lithuanian parliament, the Seimas. The modern office of prime minister was established in 1990, when Lithuania declared its independence, although the official title was "Chairperson of the Council of Ministers" until 25 November 1992.