Cognomen فولتير (Volter 
, فولتير) , in the world, is a rare surname. The last name فولتير is habitual in Estonia, where it is quite a rare surname, Hungary, and North Macedonia, where it is a rare surname. Not in comparison with a country's population, it is the most numerous in Hungary, Germany, and the United States. Also, فولتير is the forename as well as the last name.