Cognomen Лайх (Laich 
, Лайх 
) , all over the world, is quite a rare last name. The last name Лайх is habitual in Switzerland, where it is a rare surname, Algeria, and Germany. Not in comparison with a country's population, the name is most common in Germany, the United States, and Algeria. Much less frequently, Лайх is the forename as well as the last name.