The Alfestril system was a star system situated in the Inner Rim area of the galaxy.
In the era of the Galactic Civil War, Captain Nevik of the Empire believed that secret operatives of the Rebel Alliance were active within the Alfestril system. His team on the Devastator had uncovered this intelligence from an encrypted message exchanged between Central Commander Sollaine of the Imperial Security Bureau and Darth Vader. Despite Nevik's efforts to look into the matter, Commander Sollaine killed the captain after he declined an instruction to proceed to Corulag.