Ikosi babban gari ne a cikin karamar hukumar Kosofe ta jihar Legas . Mazauna yankin sun mayar da harajinsu ga Mataimakin Hakimin Gundumar Ikeja, Mista EJGibbond ta hannun Cif Yesufu Taiwo, wanda shi ne Onikosi a shekarar 1939. Najeriya . Obas na masarautar Ikosi sune manyan sarakunan masarautar Kosofe. Ikosi, hedikwatar kula da kauyuka bakwai da suka hada da Kosofe, an kafa ta ne a karni na sha biyar 15, wanda Aina Ejo, dan na bakwai na Akanbiogun, basarake kuma mayaki a Ile-Ife wanda ya taba zama a Iwaye Quarters a Ota (Jihar Ogun) . Daga baya ya bar Ota don zama ƙasar budurwa. 'Yan asalin Ikosi sun fito ne daga kabilar Awori na Yarabawa kuma suna da karimci da kuma mutane masu son zaman lafiya. Tatsuniyar gargajiya tana nuna cewa sunan 'Ikosi' wani ɗan gajeren tsari ne na faɗin 'Kosi Kosi' wanda ke nufin maganar magabata na farko ga baƙi cewa ba su taɓa tara kayansu daga baƙi. A al'adance su manoma ne.