Sudan

Nyuri Haraza, Western Darfur → Nyuri Jabel, Western Darfur → Obokei Ardeba, Western Darfur → Obokei Dulunga, Western Darfur → Obol, Central Darfur → Oda, Southern Darfur → Ogr, Northern Darfur → Old Ranga, Western Darfur → Old Roseires, Blue Nile → Om Rabook, Western Darfur → Om, Northern Darfur → Oma, Southern Kordofan → Omar Ennashe, River Nile → Omdurman, Khartoum → Omuri, Southern Kordofan → Ondour, Western Darfur → Onsa, Blue Nile → Ora, Blue Nile → Oreil, North Kordofan → Orori, Northern Darfur →