Family name Лахнер (Lachner 
, Лахнер 
) , in the entire world, is quite a rare surname. The surname Лахнер is habitual in Germany, where it is quite a rare surname, Austria, and Costa Rica. Not in comparison with a country's population, it is the most numerous in Germany, the United States, and Austria. Very seldom, Лахнер is the forename as well as the last name.