ABCDEFGIKLMNOPSTUWYZ O Obajana Obele Ochadam Ochaja Mediumwave Transmitter Ochanja Ochikwachikwa Odagba Odeke Odenyi Odobu Odokoro Odu Oduape Odugbo Ofante Ofokofi Oforachi Ogale Ogaminana Ogba Ogbagwu Ogbonaha Ogbono Ogidi Kabba Ogoddo Ogodu Ogogba Ogori Oguaobono Ogugu Oguma Ogwo Ogwogbo Ohakite Ohizen Katurou Ohoile Ohuada Ohunene Ojuwueyele Okaba Okaito Okebukun Okedayo Okene Okenyi Oko Okokengi Okomoba Okpa Okpongi Okuba Okume Okwoengele Ola Oledo Oliya Ologba Olojoba Olowo Olufofo Onado Onari Onukpo Onyebu Onyedega Opada Opanda Opu Osara Osungwe Otu Otuba Otunade Owubu ABCDEFGIKLMNOPSTUWYZ