Cognomen קוסטו (Cousteau 
, קוסטו ) , in the world, is a rare family name. The last name קוסטו is characteristic of Israel, where it is quite a rare surname, France, where it is a rare surname, and Switzerland. In absolute terms, it is the most numerous in France, Israel, and the United States. Much less frequently, קוסטו is the forename as well as the last name.