Last name Antoina (Antoina 
) , in all the world, is a rare surname. The family name Antoina is characteristic of Gabon, where it is quite a rare surname, France, where it is a very rare surname, and Venezuela. Not in comparison with a country's population, the name is most common in Gabon, France, and China. Much less frequently, Antoina is the forename as well as the last name.