Olabisi “Bisi” Stephen Onasanya (born August 18, 1961) is a former Group Managing Director and Chief Executive Officer of First Bank of Nigeria Limited. He was before this appointment the Managing Director/Chief Executive Officer of First Pension Custodian, and began his career with Arthur Young, an American audit firm. A chartered accountant, Onasanya is credited with pioneering initiatives in Nigeria’s nascent pension custody industry that helped define best industry practices.