The Ferengi Territory or Ferengi space was a region of space governed by the Ferengi Alliance in the Alpha Quadrant. The capital world of the territory was Ferenginar.
In 2370, in response to Captain Jean-Luc Picard's claim of self-defense in firing upon DaiMon Bok's son, Bok retorted that the Stargazer had been in Ferengi space at the time. Picard explained that he hadn't realized that fact at the time, and that if Bok's son had told him where he was, he would have withdrawn. (TNG: "Bloodlines")
In 3189, the Ferengi Territory was denoted on a holographic star chart of the galaxy at Federation Headquarters. (DIS: "Scavengers")