Surname Demsar (Demsar 
) , across the world, is quite a rare last name. The cognomen Demsar is characteristic of Slovenia, where it is quite a common surname, Germany, where it is a very rare surname, and Argentina.
Mr, Simon, Borut, Kevin, Petra, Peter, Roman, Dejan, Darko, Darja, Domen, Lucas, Janez, Jamie, Jorge, Julie, Tajda, Tomaz, Necla, Elena, Heike, Vesna, Milan, Frank, Uros, Irma, Ms, Ana, Pia, Dan, Jan, Eva, Zan, Alex, Ales, Ajda, Blaz, Kyle, Dirk, Jose, John, Juan, Jure, Nada, Nace, Nina, Vlad, Ivan, and Irena