"Führer" is a German word meaning "leader" or "guide". As a political title it is associated with the Nazi dictator Adolf Hitler. Nazi Germany cultivated the Führerprinzip ("leader principle"), and Hitler was generally known as just der Führer ("the Leader").

In compound words, the use of "Führer" remains common in German and is used in words such as Bergführer (mountain guide) or Oppositionsführer (leader of the opposition). However, because of its strong association with Hitler, the isolated word itself usually has negative connotations when used with the meaning of "leader", especially in political contexts. The word Führer has cognates in the Scandinavian languages, spelled fører in Danish and Norwegian which have the same meaning and use as the German word, but without necessarily having political connotations.

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