Surname Лассер (Lasser 
, Лассер 
) , in the entire world, is quite a rare last name. The cognomen Лассер is habitual in Switzerland, where it is quite a rare surname, Austria, and Slovenia, where it is a rare surname. Measured by absolute frequency, it is the most numerous in the United States, Switzerland, and Austria. Very seldom, Лассер is the forename as well as the last name.