Surname Holn (Holn 
, هولن) , around the world, is a very rare last name. The surname Holn is habitual in New Zealand, where it is a very rare surname, Germany, where it is an extremely rare surname, and Brazil. Not in comparison with a country's population, this name is the most popular in Brazil, Germany, and the United States. Much less frequently, Holn is the forename as well as the last name.