In the original trilogy, set later in time, it is referred to as the Old Republic.
The Republic is most prominently portrayed in the prequel trilogy of films in the Star Wars franchise. The Galactic Republic, often referred to as simply the Republic, is an interstellar state depicted in the fictional Star Wars universe, where it existed prior to the establishment of the Galactic Empire.
Reorganized 19 BBY, into the Galactic EmpireĬonfederacy of Independent Systems (Separatists)