Tawilayt n Tihert d Tawilayt deg tmurt n Lezzayer. Zedɣen-tt 846 823 n yimezdaɣen. Ma d tajumma-ines tesɛa azal n 20 673 km². Tamanaɣt ines d tamdint n thert. Tawilayt-a tebḍa ɣef 14 n tdayriwin: Tadayra n Ɛin Ddheb (Chehaima (fr) , Ɛin Ddheb, Nnɛima)Tadayra n Ɛin Kermes (Madna, Ɛin Kermes, Ǧbilat Rreṣfa, Madrisa, Sidi Ɛebderreḥman)Tadayra n Deḥmuni (Ɛin Buceqqif, Deḥmuni)Tadayra n Frenda (Ɛin Leḥdid, Frenda, Taxmart)Tadayra n Ḥemmadeyya (Bugara, Rechaiga (fr) , Ḥemmadeyya)Tadayra n Qṣer Cellala (Qṣer Cellala, Serɣin, Zmalet Lamir Ɛebdelqader)Tadayra n Mehdeyya (Aïn Zarit (fr) , Nnaḍura, Mehdeyya, Sebɛin)Tadayra n Mecreɛ Ṣṣfa (Djillali Ben Amar (fr) , Mecreɛ Ṣṣfa, Tagdamt)Tadayra n Medrusa (Medrusa, Sidi Bexti, Mellaku)Tadayra n Mɣila (Mɣila, Sidi Ḥusni, Ssebt)Tadayra n Wad Lili (Wad Lili, Sidi Ɛli Mellal, Tidda)Tadayra n Rreḥweyya (Gerṭufa, Rreḥweyya)Tadayra n Suger (Suger, Lfayǧa, Si Ɛebdelɣani, Tusnina)Tadayra n Tihert (Tihert)