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Last name Toua (Toua ) , throughout the world, is quite a rare family name. The last name Toua is characteristic of Martinique, where it is quite a common surname, Papua New Guinea, where it is quite a rare surname, and Cameroon. Not in comparison with a country's population, it most frequently occurs in Cameroon, Papua New Guinea, and Algeria. Likewise, Toua is the forename as well as the last name.