David L. Huestis (December 20, 1946 – January 12, 2024[1]) was an American physicist and inventor associated with SRI International. Huestis was awarded the status of Fellow[2] in the American Physical Society,[3] after being nominated by their Division of Atomic, Molecular & Optical Physics in 1990,[4] for "his extensive, broad-ranging theoretical contributions and collaborations with experimentalists leading to fundamental understanding in areas of atomic and molecular excited states, molecular spectroscopy, excimer-laser kinetics, nonlinear optics, and scattering theory."