Last name Мацер (Macer 
, Мацер 
) , in the entire world, is a rare family name. The last name Мацер is characteristic of Northern Europe, particularly Isle of Man, where it is quite a rare surname, the United Kingdom, where it is a rare surname, and Ireland. In absolute terms, it is the most numerous in the United States, the United Kingdom, and Philippines. Very seldom, Мацер is the forename as well as the last name.