Family name רושר (Rosher 
, רושר 
) , across the world, is a rare last name. The surname רושר is characteristic of the United Kingdom, where it is a rare surname, Australia, and Canada, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in the United Kingdom, the United States, and Australia. Much less frequently, רושר is the forename as well as the last name.