Cognomen Леах (Leah 
, Leakh 
, Леах 
) , across the world, is a common last name. The family name Леах is characteristic of Israel, where it is a common surname, Moldova, where it is quite a rare surname, and Kenya. Measured by absolute frequency, it is commonest in Israel, Nigeria, and Kenya. More frequently, Леах is the forename as well as the last name.