Coordinates: 13°27′36″N 14°44′24″E / 13.46000°N 14.74000°E
Lac is one of the 22 regions of Chad and its capital is Bol. It is composed by the former Lac Prefecture.
The region of Lac is divided into two departments:
Lac is traversed by the northeasterly line of equal latitude and longitude. The region includes Chad's portion of the shore of Lake Chad.
The population of this region has 248,226 inhabitants (1993 census).
The main ethnico-linguistic groups are the Kanembu (more than 66%) and the Buduma (more than 18%).