Cognomen Yv (Yv 
) , in the world, is quite a rare family name. The cognomen Yv is habitual in Laos, where it is quite a rare surname, Taiwan, where it is a rare surname, and Bolivia. Not in comparison with a country's population, this name is the most popular in India, Laos, and Taiwan. Also, Yv is the forename as well as the last name.