Mykolas Sleževicius (21 February 1882 – 11 November 1939) 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, Sleževicius has been credited with preparing Lithuania for the fights to come and for laying the foundations of the fledgling state.
Sleževicius was elected to the Lithuanian parliament, initially the Constituent Assembly, later the Seimas, on four occasions.
In 1926, as a representative of the Lithuanian Popular Peasants' Union, Sleževicius became the prime minister for a third time.
His government introduced important changes aimed at normalizing the situation in Lithuania, but the reforms faced resistance from the Catholic clergy, military officers and the parliamentary opposition.
The resistance culminated in a military coup d'état in December 1926, which brought to power the authoritarian rule of Antanas Smetona.
Sleževicius continued participating in the activities of his party but never again regained his previous influence.