Surname Kuani (Kuani 
) , in all the world, is a very rare last name. The surname Kuani is characteristic of South-eastern Asia, particularly Malaysia, where it is a very rare surname, Indonesia, and Thailand, where it is an extremely rare surname. Not in comparison with a country's population, it is the most numerous in Indonesia, Malaysia, and India. More frequently, Kuani is the forename as well as the last name.