Cognomen แห้ว (Truffa 
, Haeo , แห้ว) , in all the world, is a rare family name. The last name แห้ว is characteristic of Argentina, where it is a rare surname, Italy, and Chile, where it is a very rare surname. In absolute terms, it is the most numerous in Argentina, Italy, and the United States. Very seldom, แห้ว is the forename as well as the last name.