Family name ボナ (Bona 
, Bonnat 
, ボナ 
) , worldwide, is a common last name. The cognomen ボナ is habitual in Hungary, where it is quite a common surname, Albania, and Italy, where it is quite a rare surname. Measured by absolute frequency, the name is most common in Brazil, Philippines, and Italy. Also, ボナ is the forename as well as the last name.