Vandor-3, also spelled as Vandor-Three, was the fifth planet in the Coruscant system.
In 43 BBY, the Tech Raiders, a criminal organization that stole tech equipment and later sold them on the black market, relocated their base to Vandor-3.
Vandor-3 served as a training ground for clone troopers during the Clone Wars. For the training ground, a barracks was constructed on the capital's outskirts that could hold 50,000 troopers. One particular exercise involved facing the selenome that inhabited one of the planet's oceans.
Following the Declaration of a New Order, Vandor-3 became part of the Galactic Empire. At some point after the Battle of Endor, Vandor-3 joined the New Republic and later its successor state, the Galactic Federation of Free Alliances.