=== Presidents of the Presidium of the
Council of Lithuania === The state of Lithuania was ruled by the Presidium of the State Council of Lithuania, its chairman was de facto Head of State. The institution of President was established on 4 April 1919. Chairman of the Presidium
Antanas Smetona was elected as First President of the State of Lithuania by the State Council of Lithuania and was the only one in under whose rule this position has been considered the office of the head of state. ===
Presidents of the Republic of Lithuania === The institution of President () was created on 4 April 1919. Antanas Smetona was elected as the first President of Lithuania. ===
Posthumously recognized acting Presidents === === Heads of the
Lithuanian Diplomatic Service === Following Lithuania's occupation by the
Soviet Union on 15 June 1940, in his telegram dated 31 May 1940, the last Foreign Minister
Juozas Urbšys provisioned that, in the event of occupation,
Stasys Lozoraitis, minister extraordinary and plenipotentiary to
Rome, be appointed the head of the Lithuanian diplomatic service. The Lithuanian diplomatic service became a
Government in exile that was a critical piece to ensuring the recognition of the continuity of Lithuanian legal statehood until independence after the
Dissolution of the Soviet Union. == Lithuanian Soviet Socialist Republic (1940–1941) ==