Thomas Jack Lee (April 1, 1935 – February 24, 2019) was the sixth Director of the NASA Marshall Space Flight Center in Huntsville, Alabama, from July 6, 1989 to January 6, 1994.

In addition to his responsibilities as deputy director, Lee was manager of the Heavy Lift Launch Vehicle Definition Office, NASA's effort to define and develop a heavy lift launch vehicle capable of meeting national requirements.

Lee began his professional career in 1958 as an aeronautical research engineer with the U.S. Army Ballistic Missile Agency at the Redstone Arsenal.

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