Surname Tuys (Tuys 
) , around the world, is a very rare family name. The cognomen Tuys is characteristic of South Africa, where it is a very rare surname, Venezuela, and the United Kingdom, where it is an extremely rare surname. Not in comparison with a country's population, it is commonest in South Africa, Venezuela, and the United States. Also, Tuys is the forename as well as the last name.