Tandjilé (Arabic: تانجلي) is one of the 23 regions of Chad, located in the south-west of the country.

Laï is the capital of the region; other major settlements include Baktchoro, Béré, Dafra, Déressia, Dono Manga, Guidari, Kélo and N'Dam.

[1] The region had 458,240 inhabitants in 1993, of whom 442,876 sedentary (rural, 385,537; urban, 57,339) and 15,364 nomad.

[citation needed] The main ethnolinguistic groups are the Besme, Gabri, Goundo, Kabalai, Kim, Kimré, Kwang, Lele, Mango, Marba, Mesme, Mire, Nangtchéré, Ndam, the Sara Ngambay, Somrai, Tobanga and Tumak.

[3] The region of Tandjilé is divided into three departments: