Philip Rogers Mallory (November 11, 1885 - November 16, 1975) was an American businessman and the founder of the company that is now known as Duracell International. Rather than making a career in his family's shipping business, he founded his own manufacturing company, the P. R. Mallory Company. Starting as a manufacturer of tungsten filament wire, his company later became The Mallory Battery Company and is now known as Duracell International.
He attended Yale and Columbia universities.
In 1942, Samuel Ruben and Mallory developed the mercury cell which was considered a breakthrough in battery manufacturing.
Mallory served as Commodore of American Yacht Club in the 1920s.