Surname Kaver (Kaver 
, Кавер 
) , across the world, is a rare last name. The surname Kaver is habitual in Estonia, where it is quite a rare surname, Slovenia, and Costa Rica, where it is a rare surname. Not in comparison with a country's population, it is commonest in India, Russia, and the United States. Also, Kaver is the forename as well as the last name.