Reichstag is a German word generally meaning parliament, more directly translated as Diet of the Realm or National diet, or more loosely as Imperial Diet. It may refer to:
Buildings and places
Reichstagsgebäude is the specific German word for parliamentary buildings, often shortened to Reichstag, and may refer to:
Historic legislative bodies in German-speaking countries have been referred to as Reichstag, including:
- Synod of Worms (1076), Imperial Diet convened by Holy Roman Emperor Henry IV which sought to depose Pope Gregory VII
- Diet of Worms (German: Reichstag zu Worms), Imperial Diet in 1521 at which Martin Luther was declared a heretic.
- Diet of Augsburg (German: Reichstag zu Augsburg), noteworthy sessions of the Imperial Diet in 1530 and 1555.
- Reichstag Peace Resolution (1917), an unsuccessful attempt by the Reichstag to end World War I
- Reichstag fire (1933), an arson attack on the Reichstag building which provided a pretext for the Nazis to seize power
- Reichstag Fire Decree (1933), order issued by German President Paul von Hindenburg in response to the fire
- Reichstag Fire Trial, also called the Leipzig Trial (1933), a show trial of those accused of starting the fire
- Raising a Flag over the Reichstag (May 2, 1945), image of Soviet troops raising the flag of the Soviet Union over the Reichstag after capturing the building in the Battle of Berlin
- Bundestag and Bundesrat of Germany, the two legislative bodies in the Federal Republic of Germany
- Reichsrat (other), roughly "Imperial Council", a smaller more powerful legislative body in several German-speaking countries, similar to the Upper House of a Parliament
- Riksdag, the parliaments of Sweden and Finland, the latter called eduskunta in the Finnish language.
- Rigsdagen, the parliament of Denmark from 1849 to 1953
- Riksråd, generic name in Scandinavian countries for various Councils of the Realm