Last name Ваз (Vaz 
, Ваз 
) , across the world, is a widespread surname. The last name Ваз is habitual in Cabo Verde, where it is a widespread surname, Portugal, where it is a common surname, and Guinea-Bissau, where it is quite a common surname (explore the name in all countries). Measured by absolute frequency, it is the most numerous in Brazil, India, and Portugal. Very seldom, Ваз is the forename as well as the last name.