Last name Wazzer (Waser 
, Wasser 
, Wazzer ) , around the world, is a common cognomen. The cognomen Wazzer is characteristic of Western Europe, particularly Switzerland, where it is quite a common surname, Austria, where it is quite a rare surname, and Germany. In absolute terms, it is the most numerous in Switzerland, the United States, and Nigeria. Much less frequently, Wazzer is the forename as well as the last name.