Kevin K. Lehmann (born September 7, 1955, in Newark, New Jersey) is an American chemist and spectroscopist at the University of Virginia, best known for his work in the area of intramolecular and collisional dynamics, and for his advances in the method of cavity ring down spectroscopy (CRDS).
Raised in Irvington, New Jersey, a suburb of Newark, Lehmann studied chemical physics and mathematics at Rutgers University's Cook College, graduating with highest honors in 1977.
Under the direction of William Klemperer, Lehmann's graduate work involved studies of highly excited vibrational states using photoacoustic spectroscopy.
There he developed with Stephen Coy the technique of microwave-detected, microwave-optical double resonance, which permits the automatic assignment of complex spectra.
He received the Thomas A. Edison Patent Award in 2002 for his work in CRDS, and in 2003, was granted the Earle K. Plyler Prize in Molecular Spectroscopy.