Family name Ламмерт (Lammert 
, Ламмерт 
) , globally, is quite a rare surname. The surname Ламмерт is characteristic of Germany, where it is quite a rare surname, Denmark, where it is a rare surname, and the United States. In absolute terms, it is the most numerous in Germany, the United States, and France. Very seldom, Ламмерт is the forename as well as the last name.