Paracelsus, (1493-1541), alchemist
Rudolph Pariser, (born 1923), theoretical and organic chemist
Alexander Parkes (1813-1890) British chemist and metallurgist, invented first plastic
Robert G. Parr, (born 1921), theoretical chemist
Louis Pasteur, (1822-1895), French biochemist
Wolfgang Pauli (1900-1958) Austrian physicist, winner of 1945 Nobel Prize in Physics
Linus Pauling, (1901-1994), Nobel Prizes in chemistry and peace
Charles J. Pedersen (1904-1989) American biochemist, winner of 1987 Nobel Prize in Chemistry
Pierre-Joseph Pelletier (1788-1842) French chemist, alkaloid chemistry
William Perkin, (1838-1907) British organic chemist and inventor of mauveine (dye)
George C. Pimentel (1922-1989) American chemist
Roy J. Plunkett, (1910-1994), discoverer of Teflon
John A. Pople, (1925-2004), theoretical chemist, 1998 Nobel Prize in Chemistry
George Porter (1920-2002) British chemist, winner of 1967 Nobel Prize in Chemistry
Rodney Robert Porter (1917-1985) English biochemist, winner of 1972 Nobel Prize in Medicine
Fritz Pregl, (1869-1930), chemist, 1923 Nobel Prize in Chemistry 1923
Vladimir Prelog, (1906-1998), 1975 Nobel Prize in Chemistry
Joseph Priestley, (1733-1804)
Ilya Prigogine, (1917-2003), 1977 Nobel Prize in Chemistry
Joseph-Louis Proust (1754-1826) French chemist, law of definite proportions
John Charles Polanyi, (born 1929), Canadian chemist, 1986 Nobel Prize in Chemistry
