Surname רוהר (Rohr 
, רוהר 
) , globally, is a common cognomen. The last name רוהר is characteristic of Western Europe, particularly Switzerland, where it is quite a common surname, Germany, where it is quite a rare surname, and Austria. Not in comparison with a country's population, the name is most common in Germany, the United States, and Brazil. Much less frequently, רוהר is the forename as well as the last name.