The Relik sector is a sector of space somewhere within the galaxy's Alpha or Beta Quadrants.
History and specifics[]
Within the borders of the Romulan Star Empire, the Relik sector was the site of the defeat of a Borg scout by the IRW Antares in the mid-to-late 24th century. The scoutship was downed on a planet in this region, averting a Borg incursion of Romulan space and giving the Empire an insight into numerous forms of technology contained in the wreckage. (ST video game: Starfleet Command III)