Tawilayt n Illizi d Tawilayt deg tmurt n Lezzayer. Zedɣen-tt 52 333 n yimezdaɣen. Ma d tajumma-ines tesɛa azal n 285 000 km². Tamanaɣt ines d tamdint n yellizi. Tawilayt-a tebḍa ɣef 2 n tdayriwin: Tadayra n Illizi (Illizi)Tadayra n In Aminas (In Aminas, Burǧ Ɛumar Dris, Debdab)