Dortmunder means someone or something from Dortmund, Germany. It may refer to:
John Dortmunder, a fictional character created by Donald E. Westlake. Tod Dortmunder, a fictional character from the TV show Little House on the Prairie. Dortmunder Export or Dortmunder, a style of pale lager beer. Dortmunder Actien Brauerei, a brewery in Dortmund, Germany. Dortmunder SC, a sporting club that was a predecessor to TSC Eintracht Dortmund. IAV Dortmunder, a ship of the Alliance in the television science-fiction series Firefly. "Dortmunder", an early poem by Samuel Beckett.