Tillabéri sashe ne daga cikin sassan dake a yankin Tillabéri, na Jamhuriyyar Nijar. Babban birnin sashen shine Tillabéri garine da ya kunshi al'umomin Ayorou (yazuwa 2001 manyan garuruwan sashen sune, Anzourou, DDessa, Kourteye, da Sinder). Kogin Neja shine iyakar sashen daga yamma. Bisaga kidayar 2011, yawan mutane a sashen ya kai 295,898. "Annuaires_Statistiques" (PDF). Institut National de la Statistique. Retrieved 2 May 2013.