Karim Olowu attended Saint Paul's Primary School, Breadfruit Lagos, then in 1936 he represented his school in the Empire Day Athletics, and he later attended CMS Grammar School, Lagos where he was the sports prefect.
He attended Saint Paul's Primary School, Breadfruit Lagos where in 1936 he began his sporting career represented his school in the Empire Day Athletics in commemoration of the British Empire Day, which was celebrated in Britain and its colonies before the independence in 1960. He later attended CMS Grammar School, Lagos where he was the sports prefect (Prefectus Ludorum). 
