Hubertus Knabe is a German historian and was the scientific director of the Berlin-Hohenschönhausen Memorial, a museum and memorial in a notorious former Stasi torture prison in Berlin. Knabe is noted for several works on oppression in the former Communist states of Eastern Europe, particularly in East Germany. He became involved with green politics, and was active in the Alliance '90/The Greens.

Wilhelm Knabe was a German ecologist, pacifist, civil servant and politician, remembered as a founding member of the Green Party in Germany, and a pioneer of conservation of the environment who shaped the party for decades.