Federal Assembly may refer to:

• Federal Assembly of Austria, the name for a joint-session of the Austrian federal parliament
• Federal Assembly of Russia, the Russian federal parliament
• Federal Assembly of Switzerland, the Swiss federal parliament
• Federal Assembly of Czechoslovakia, the former Czechoslovak federal parliament
• Bundesversammlung (Germany), a formal convention that elects the country's Federal President
• Bundesversammlung (German Confederation), the federal assembly of the German Confederation (1815-1866)

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