Heinz-Hermann Koelle (born 22 July 1925 Danzig, died 20 February 2011 in Berlin, Germany, 85 years old) 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.