In all the world, Олусегун (Olusegun 
, Олусегун 
) is a common principally masculine, but scarcely girly forename. The forename Олусегун is habitual in Nigeria, where it is quite a common principally boy's, but very infrequently feminine name, Ireland, where it is a rare masculine name, and the United Kingdom. In absolute terms, it most frequently occurs in Nigeria, the United States, and the United Kingdom. Also, Олусегун is the last name as well as the forename.