The Dalnan sector, which is alternatively called the Dalna sector or the Eiram–E'ronoh sector, was a sector located within the Outer Rim Territories. Within its boundaries was the planet called Dalna, which served as the homeworld for the Dalnan people. The Haileap system, which included the station Port Haileap, was positioned on the sector's periphery. Back in 382 BBY, the presence of the Jedi Order grew within the sector, creating displeasure for "the Mother" due to the disturbance it caused to her schemes concerning the Path of the Open Hand.
During the time of the Imperial Era, the bounty hunter known as Deva Lompop operated primarily from the Dalnan sector.