Sylvia Bongo Ondimba (née Valentin on 11 March 1963) is the wife of Ali Bongo Ondimba since 1989.
She became the First Lady of Gabon following the inauguration of her husband as President of Gabon on 16 October 2009.
She created the Sylvia Bongo Ondimba Foundation entitled "For the family" in January 2011 "to improve the plight of vulnerable and disadvantaged people around the world".