Family name Ganze (Ganze 
, Ганзе 
) , around the world, is a rare cognomen. The surname Ganze is characteristic of Germany, where it is a rare surname, Switzerland, where it is a very rare surname, and the United States. Measured by absolute frequency, this name is the most popular in Germany, the United States, and Brazil. Much less frequently, Ganze is the forename as well as the last name.