Kogin Ruvyironza (ko Luvironza) kogi ne a Afirka wanda wasu ke ɗaukarsa a matsayin tushen mafi nisa daga Kogin Nilu, kogin mafi tsayi a duniya. Ya hau kan Dutsen Kikizi a Burundi, kuma ya ratsa Kogin Rurubu ya shiga Kogin Kagera a Tanzania, kuma daga can ya shiga Tafkin Victoria. Tare da tsawon tsawon 182.4 km (113.3 mi). Africa Longest River | Egypt Nile River | World Longest River | Nile White | Ancient Capital Nile Archived 2007-01-10 at the Wayback Machine "Encarta online encyclopedia". Archived from the original on 2008-05-13. Retrieved 2019-11-19. NILE