Surname Ontsa (Ontsa 
) , throughout the world, is a rare cognomen. The family name Ontsa is characteristic of the Democratic Republic of the Congo, where it is a rare surname, France, where it is an extremely rare surname, and the United Kingdom. Much less frequently, Ontsa is the forename as well as the last name.
Annie, Pascal, Chilna-Nervette, Rebecca, William, and Jean-Jacques