Surname Геннер (Genner 
, Guenner 
, Геннер 
) , in the entire world, is quite a rare family name. The surname Геннер is characteristic of Austria, where it is quite a rare surname, Australia, where it is a rare surname, and Nicaragua. In absolute terms, the name is most common in the United Kingdom, Mexico, and Austria. Likewise, Геннер is the forename as well as the last name.