Cognomen מורר (Murer 
, מורר 
) , in the world, is quite a rare last name. The surname מורר is characteristic of Switzerland, where it is quite a common surname, Estonia, where it is quite a rare surname, and Austria. Not in comparison with a country's population, it is commonest in Switzerland, Italy, and France. Very seldom, מורר is the forename as well as the last name.