The Interdictor-class Star Destroyer, also known as the Interdictor-class heavy cruiser, or Interdictor-class cruiser was an Interdictor vessel that served as the successor to the Immobilizer 418 cruiser. Developed and used by the Galactic Empire, the craft was capable of emitting an interdiction field to pull passing ships out of hyperspace or prevent them from going to lightspeed. Despite being a relatively rare sight in the Imperial Navy, it was considered a dangerous design by rebel groups that relied on hit-and-run tactics. It was used against the rebellion around 4 BBY, and several featured as part of the 7th Fleet.

The Interdictor-class Star Destroyer, also known as the Interdictor-class heavy cruiser, or Interdictor-class cruiser was a class of heavy cruiser of the Star Destroyer design family. The ship was the successor model to the Immobilizer 418 cruiser. The Interdictor-class would ultimately arise, however.

It possessed four spherical gravity well projectors, which contained equipment to pull a number of ships out of hyperspace. It was 1,129 meters in length and could achieve a speed of 975 kilometers per hour. It was equipped with a class 2 hyperdrive as well as a deflector shield generator. The Interdictor-class was armed with twenty quad laser cannons, and outfitted with escape pods. It could maintain a complement of twenty-four TIE line starfighters deployed from one ventral hangar bay opening. Interdictor-class Star Destroyers were crewed by 2,800 personnel, including Imperial officers, Imperial weapons technicians, and stormtroopers.

The Interdictor-class Star Destroyer first appeared in «Stealth Strike,» an episode of the second season of Star Wars Rebels. Although similar in appearance to the Immobilizer 418 cruiser from Star Wars Legends, it shares the name of the Legends Interdictor-class Star Destroyer. The 2018 reference book Star Wars Encyclopedia of Starfighters and Other Vehicles states that the Interdictor-class Star Destroyer had a complement of 24 TIE fighters, while the 2019 reference book Ultimate Star Wars, New Edition establishes that Interdictor-class Star Destroyers possess a complement of 20 TIE fighters, As the 2020 sourcebook Starships and Speeders establishes that they had a complement of 24 TIE series fighters of mixed designation, and Starships and Speeders is the most recently published source, this article assumes Starships and Speeders is correct.