List of assemblies called Sejm

The Sejm of the Republic of Poland (Polish: Sejm Rzeczypospolitej Polskiej) is the lower house of the Polish parliament. Its name comes from what was once a generic Polish word for a political gathering. It is also used to refer to historical diets or assemblies.

Pre-partition sejms

 * Sejm of the Kingdom of Poland, 15th–16th centuries
 * Sejm of the Polish–Lithuanian Commonwealth, 1569–1793
 * Sejm of Four Lands, or Council of Four Lands (Sejm Czterech Ziem, Va'ad Arba' Aratzot), central Jewish authority in Poland, 1580–1764

Types of sessions

 * Confederated sejm (sejm skonfederowany), a form of sejm where decisions were made by the majority of deputy votes cast
 * Convocation sejm (sejm konwokacyjny), part of the process of royal elections in which candidates were put forward and rules of election established
 * Coronation sejm (sejm koronacyjny), the first sejm convened by a newly crowned king
 * Election sejm (sejm elekcyjny), the election of the king by the nobility
 * Pacification sejm (Sejm pacyfikacyjny), held after a period of conflict, usually a disputed royal election, to bring peace and unity to the country

Specific sessions
In chronological order:
 * Convocation Sejm (1764)
 * Election Sejm of 1632
 * Silent Sejm (Sejm Niemy), 1717
 * Repnin Sejm (Sejm Repninowski), 1767–1768
 * Partition Sejm (Sejm Rozbiorowy), 1773–1775
 * Great Sejm (Sejm Wielki), 1788–1792
 * Grodno Sejm (Sejm Grodzieński), 1793

Post-partition sejms
In chronological order:
 * Galician Sejm (Sejm Galicyjski, Sejm Krajowy), or Diet of Galicia and Lodomeria, 1861–1918
 * Silesian Sejm, or Silesian Parliament (Sejm Śląski), legislature of the Autonomous Silesian Voivodeship, 1920–1939
 * Sejm of the Republic of Central Lithuania (Sejm Litwy Środkowej), 1922
 * Contract Sejm (sejm kontraktowy), 1989–1991