Surname Vithi (Vithi 
, วิถี ) , all around the world, is quite a rare cognomen. The cognomen Vithi is habitual in Thailand, where it is quite a rare surname, South Africa, where it is a rare surname, and Vietnam, where it is an extremely rare surname. Not in comparison with a country's population, it most frequently occurs in Thailand, South Africa, and India. Also, Vithi is the forename as well as the last name.