Cognomen Leyv (Lauf 
, Leyv 
) , in the world, is quite a rare surname. The last name Leyv is characteristic of Slovakia, where it is quite a rare surname, Germany, and Hungary, where it is a rare surname. Measured by absolute frequency, it is the most numerous in Germany, the United States, and Netherlands. Very seldom, Leyv is the forename as well as the last name.