Surname Ренер (Rener 
, Ренер 
) , globally, is quite a rare last name. The surname Ренер is characteristic of Slovenia, where it is quite a rare surname, Nicaragua, and Uruguay, where it is a rare surname. In absolute terms, this name is the most popular in the United States, Slovenia, and Brazil. Likewise, Ренер is the forename as well as the last name.