Vakaga is one of the 20 prefectures of the Central African Republic. Its capital is Birao. It covers an area of 46,500 km and has a population of 52,255 (2003 census). In 2024, official estimates suggest the population reached 89,189 inhabitants.
The extremely low population density, 1.1 people/km, is a result of the capture of the majority of the region's inhabitants by slave-traders from the Sudan in the second half of the nineteenth century. Vakaga is known for its oil reserves.