The Derra system was a star system located in the Expansion Region. It included the planet Derra IV, the site of the Battle of Derra IV in 3 ABY, in which a Rebel convoy en route to Hoth was ambushed and destroyed by Imperial forces.
- Side Trip (First mentioned)
- Star Wars: Behind the Magic
- The Complete Star Wars Encyclopedia
- The Essential Atlas
- Star Wars: Edge of the Empire Core Rulebook