Philip H. Bucksbaum (born January 14, 1953 in Grinnell, Iowa) is an American atomic physicist, the Marguerite Blake Wilbur Professor in Natural Science in the Departments of Physics, Applied Physics, and Photon Science at Stanford University and the SLAC National Accelerator Laboratory. He also directs the Stanford PULSE Institute. He is a member of the National Academy of Sciences and a Fellow of the American Academy of Arts and Sciences, the American Physical Society, and the Optical Society, and was elected President of the Optical Society for 2014. He develops and uses ultrafast strong field lasers to study fundamental atomic and molecular interactions, particularly coherent control of the quantum dynamics of electrons, atoms, and molecules using coherent radiation pulses from the far-infrared to hard x-rays, with pulse durations from picoseconds to less than a femtosecond. Bucksbaum is the recipient of the 2020 Norman F. Ramsey Prize in Atomic, Molecular and Optical Physics, and in Precision Tests of Fundamental Laws and Symmetries for his pioneering explorations of ultrafast strong field physics from the optical to the X-ray regime. (en)