Cognomen Supina (សុបិន 
, Supina 
, Супина 
) , across the world, is quite a rare last name. The last name Supina is habitual in Croatia, where it is quite a rare surname, Latvia, and Thailand, where it is a rare surname. Not in comparison with a country's population, it is the most numerous in Thailand, the United States, and Indonesia. Also, Supina is the forename as well as the last name.