Surname Rantas (Rantas 
) , worldwide, is a rare family name. The last name Rantas is habitual in Greece, where it is a rare surname, Indonesia, where it is a very rare surname, and Malaysia, where it is an extremely rare surname. Not in comparison with a country's population, this name is the most popular in Indonesia, Greece, and the United States. Also, Rantas is the forename as well as the last name.