Family name マーツ (Marz 
, Martz , マーツ) , worldwide, is a common cognomen. The last name マーツ is characteristic of El Salvador, where it is quite a common surname, Switzerland, where it is quite a rare surname, and Germany. In absolute terms, the name is most common in the United States, Germany, and France. Very seldom, マーツ is the forename as well as the last name.