List of rulers of Lithuania
Republic of Lithuania (1920–1940)

No
Term
President
Image
Remarks
2
19 June 1920 – 7 June 1926
Aleksandras Stulginskis
-
Acting President (as Constituent Assembly). Re-elected by the Seimas on 21 December 1922 and in June 1923.
3
7 June – 18 December 1926
Kazys Grinius
-
Elected by parliament, but overthrown by a military coup d'état.
—
18–19 December 1926
Jonas Staugaitis
-
Formally, for one day, as the head of Seimas (renounced the office after the coup d'état).
—
19 December 1926
Aleksandras Stulginskis
-
Formally, as the new head of Seimas, only for several hours.
—
19 December 1926 – 15 June 1940
Antanas Smetona
-
Second term, elected president after a military coup d'état; after the Soviet ultimatum of 1940 he fled to Germany and then to the USA.
—
15–17 June 1940
Antanas Merkys
-
The Prime Minister, de facto acting president after Smetona's defection. Not recognised by Lithuanian diplomats abroad; he assumed the role of president illegally, as Smetona neither resigned nor died.
—
17 June – August, 1940
Justas Paleckis
-
Chosen unconstitutionally by leaders of the Lithuanian communists under pressure from the Soviet Union, not recognized internationally or by the Lithuanian diplomatic service.
4
16 February 1949 – 26 November 1954
Jonas Žemaitis
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Officially named as the fourth (acting) President of Lithuania in March 2009.

Question: Who are presidents of Lithuania in 1940?
Answer: In 1940, presidents of Lithuania include Antanas Smetona, Antanas Merkys, and Justas Paleckis.