Olof Harry "Olle" Nordemar (25 July 1914 – 18 February 1999) was a Swedish film director, film editor, film producer, cinematographer and screenwriter.
Nordemar is best known as the producer behind Olle Hellbom's films based on novels by Astrid Lindgren.
Nordemar edited and produced the Norwegian-Swedish documentary Kon-Tiki (1950) which received the Academy Award for Best Documentary Feature for 1951 at the 24th Academy Awards.