Kogin Kongo babban kogi ne a tsakiyar Afirka. Shine kogi na biyu mafi tsayi a Afirka (bayan kogin Nilu) kuma kogi mafi zurfi a duniya, tare da zurfin da ya kai mita 220 (ƙafa 720) a wasu yankuna. Tsawon kogin ya kai kimanin kilomita 4,700 (mil 2,920) kuma yana bi ta Jamhuriyar Demokradiyyar Kongo, Jamhuriyar Kongo, da Angola kafin ya shiga cikin Tekun Atlantika. Kogin Kongo muhimmiyar hanyar ruwa ce don sufuri, kamun kifi, da samar da wutar lantarki. Haka kuma ita ce babbar hanyar samun ruwan sha ga mutanen da ke zaune tare da bankunanta.