Surname Галван (Galvão 
, Галван 
) , across the world, is quite a rare last name. The surname Галван is characteristic of Cabo Verde, where it is quite a common surname, Portugal, and Luxembourg, where it is quite a rare surname. Not in comparison with a country's population, it is the most numerous in Brazil, Portugal, and Angola. Very seldom, Галван is the forename as well as the last name.