The Kob is distributed in a band across Africa south of the Sahara from Senegal to South Sudan and Uganda. See the map at IUCN. It is found in savannas and alluvial plains and is rarely far from permanent water.

Some authorities split this species in which case this is Buffon's Kob Kobus kob and is distributed from Senegal to western Nigeria. This particular sub-species is classified as Vulnerable.

For more information see Wikipedia.