Cognomen Léas (Lesser 
, Léas, Ljós) , around the world, is quite a common last name. The last name Léas is habitual in Germany, where it is quite a rare surname, Israel, and Austria. Not in comparison with a country's population, it is the most numerous in the United States, Germany, and the United Kingdom. Much less frequently, Léas is the forename as well as the last name.