Oluwaseun Temitope Osewa (an haife shi 17 ga watan Disamba, shekara ta 1982) dan Najeriya ne mai kasuwanci ta yanar gizo. Shine wanda ya kafa shafin Nairaland, wani shahararren dandalin tattaunawa na yanar gizo wanda aka kirkira a watan Maris na shekara ta 2005, wanda Forbes ya gabatar a matsayin babban dandalin tattaunawa na Afirka. YNaija ya lissafa shi a matsayin daya daga cikin yan Najeriya da suka fi kirkire fasaha. Hakanan an saka shi mujallar T.I.N cikin fitattun 'yan kasuwar yanar gizo 10 da suka fi tasiri a Najeriya a cikin shekara ta 2015. Seun ya fara gudanar da shafin Nairaland a shekarar 2005.