Heinz-Hermann Koelle (22 July 1925, in Danzig, Free City of Danzig – 20 February 2011, in Berlin, Germany) was an aeronautical engineer who made the preliminary designs on the rocket that would emerge as the Saturn I. Closely associated with Wernher von Braun's team at the Army Ballistic Missile Agency (ABMA), he was a member of the launch crew on Explorer 1 and later directed the Marshall Space Flight Center's involvement in Project Apollo. In 1965, he accepted the Chair of Space Technology at the Technical University of Berlin.