Harry Haffner (28 May 1900 – 14 October 1969) was a German lawyer and the last Judge-President of the Nazi People's Court.

Haffner was then Chief of Staff at the National Socialist Association of Legal Professionals and Zellenleiter of the NSV.

On 12 March 1945, following the death of Roland Freisler in an air raid, he succeeded him as the last Judge-President of the Volksgerichtshof (People's Court).

He held this office until 24 April 1945 when the court finally ceased its activity only two weeks before the German surrender.

In 1953, he turned himself in to the authorities in Kassel and the prosecutor made his past public, but the investigations against him were dismissed.