Parliament is unicameral and is located in Vilnius.
The Seima has 141 members, who are elected to four-year terms by popular vote.
Presidents
1918-1920 Antanas Smetona
1920-1926 Aleksandras Stulginskis
1926-1926 Kazys Grinius
1926-1926 Jonas Staugaitis
1926-1926 Aleksandras Stulginskis
1926-1940 Antanas Smetona
1940-1940 Antanas Merkys
1940-1940 Justas Paleckis
1990-1992 Vytautas Landsbergis
1992-1998 Algirdas Brazauskas
1998-2003 Valdas Adamkus
2003-2004 Rolandas Paksas
2004-2009 Valdas Adamkus
2009 now Dalia Grybauskaite
Prime Ministers
1918-1918 Augustinas Voldemaras
1918-1919 Mykolas Slezevicius
1919-1919 Pranas Dovydaitis
1919-1919 Mykolas Slezevicius
1919-1920 Ernestas Galvanauskas
1920-1922 Kazys Grinius
1922-1924 Ernestas Galvanauskas
1924-1925 Antanas Tumenas
1925-1925 Vytautas Petrulis
1925-1926 Leonas Bistras
1926-1926 Mykolas Slezevicius
1926-1929 Augustinas Voldemaras
1929-1938 Juozas Tubelis
1938-1939 Vladas Mironas
1939-1939 Jonas Cernius
1939-1940 Antanas Merkys
1940-1940 Vincas Kreve-Mickevicius
1990-1991 Kazimiera Prunskiene
1991-1991 Albertas Simenas
1991-1992 Gediminas Vagnorius
1992-1992 Aleksandras Abisala
1992-1993 Bronislovas Lubys
1993-1996 Adolfas Slezevicius
1996-1996 Mindaugas Laurinas Stankevicius
1996-1999 Gediminas Vagnorius
1999-1999 Irena Degutienë (acting)
1999-1999 Rolandas Paksas
1999-1999 Irena Degutienë (acting)
1999-2000 Andrius Kubilius
2000-2001 Rolandas Paksas
2001-2006 Algirdas Brazauskas
2006-2006 Zigmantas Balcytis (acting)
2006-2008 Gediminas Kirkilas
2008 now Andrius Kubilius