Michael L. Weiss is an American engineer who is known for his contributions to on-orbit satellite servicing missions, particular of the Hubble Space Telescope. Weiss most recently served as deputy program director on the Hubble Space Telescope program at NASA's Goddard Space Flight Center in Greenbelt, Maryland. Weiss is an accomplished diver having accumulated over 200 hours in NASA’s Neutral Buoyancy Laboratory in training Shuttle flight crews on servicing techniques and procedures. Outside NASA, he an open water diver and underwater photographer.