Last name Wanca (Wanca 
) , all over the world, is a rare surname. The family name Wanca is habitual in Bolivia, where it is a rare surname, Czechia, and New Zealand, where it is a very rare surname. Not in comparison with a country's population, the name is most common in the United States, Bolivia, and Indonesia. Much less frequently, Wanca is the forename as well as the last name.