The Sith Worlds were located in the Esstran sector of the Outer Rim Territories. This region encompassed the old Sith Empire and was comprised of a minimum of 120 livable planets, notably Korriban, the Sith homeworld.
- Inside the Stygian Caldera : Ashas Ree[2] Athiss[2] Begeren[2] Bosthirda[2] Ch'hodos[2] Dromund Fels[2] Dromund Ixin[2] Dromund Kaas[2] Dromund Kalakar[2] Kalakar Six Dromund Tyne[2] Jaguada[2] Jaguada's moon Kalsunor[2] Khar Delba[2] Khar Shian Korriban[2] Korriz[2] Krayiss II[2] Nfolgai[2] Rhelg[2] Ziost[2]