Cognomen ボルタ (Volta 
, ボルタ) , around the globe, is quite a common last name. The last name ボルタ is characteristic of Italy, where it is quite a rare surname, Paraguay, and Argentina, where it is a rare surname. In absolute terms, it most frequently occurs in Italy, Indonesia, and Argentina. Much less frequently, ボルタ is the forename as well as the last name.