Paul Aimé Fleury (born July 20, 1939) is an American physicist and academic administrator.
Fleury was born in Baltimore, Maryland and educated at John Carroll University (B.S, 1960) and MIT (Ph.D., 1965).
His research has been in experimental condensed matter physics and material science including dynamic aspects of phase transformations and optical spectroscopy.
Fleury was elected a member of the National Academy of Engineering in 1996 for discoveries related to ferroelectric, acoustic, and nonlinear performance of materials, and for management leadership in materials.
He received the Michelson–Morley Award (1985) and the Frank Isakson prize for optical effects in solids (1992) from the American Physical Society.