Paneth,
Friedrich Adolf Pauling,
Linus (Carl) Pedersen,
Charles J. Pelletier,
Pierre-Joseph Pennington,
Mary Engle Perey,
Marguérite (Catherine) Polanyi,
John Charles Polanyi,
Michael Pople,
John Porter,
George Pregl,
Fritz Prelog,
Vladimir Prigogine,
Ilya Proust,
Joseph Louis Prout,
William Pyman,
Frank Lee