Marianne Joachim (born Marianna/Marianne Prager: 5 November 1921 - 4 March 1943) was a German resistance activist during the Nazi years.
She was executed at Plötzensee on 4 March 1943 following an arson attack the previous summer on the party propaganda department's (ironically named) "Soviet Paradise" exhibition in Berlin's "Lustgarten" pleasure park.