Cognomen บุญนา (Bunna 
, Bhunna 
, บุญนา ) , throughout the world, is quite a rare last name. The family name บุญนา is habitual in Thailand, where it is a rare surname, Cambodia, and Hungary. In absolute terms, it most frequently occurs in Thailand, Indonesia, and India. Much more prevalently, บุญนา is the forename as well as the last name.