- "Senator Organa… the Supreme Chancellor requests your presence at a special session of Congress."
- ―Mas Amedda, to Bail Organa
In the Galactic Republic, a special session of Congress, also known as a special session of the senate, was a period when the Galactic Senate—otherwise known as the Congress of the Republic—convened outside of the normal legislative session by order of the Supreme Chancellor.
During one such session, attendance was mandatory for every senator, and the Senate's Vice Chair was tasked with convoking them. One special session of Congress convened at the very end of the Clone Wars, after Chancellor Sheev Palpatine survived the so-called Jedi rebellion and wanted to announce the establishment of the first Galactic Empire.
- Star Wars: Episode I The Phantom Menace (First appearance)
- Star Wars: Episode III Revenge of the Sith (First identified as special session of Congress)