Joseph Doty Oliver (1850 - 1933)

Earl Bernard Olson (1915 - 2006)

Aristotle Socrates Onassis (1906 - 1975)

John R. Opel (1925 - 2011)

Harrison Gray Otis (1837 - 1917)

Eileen Ford (1922 - 2014)

Stanford Ovshinsky (1922 - 2012)

Alan Owston (1853 - 1915)

Frederick Pabst (1836 - 1904)

David Packard (1912 - 1996)

James Ward Packard (1863 - 1928)

Bijan (1944 - 2011)

William S. Paley (1901 - 1990)

Potter Palmer (1826 - 1902)

H.T. Pangburn (1875 - 1928)

Alexander Pantages (1970 - 1936)

Hervey Coke Parke (1827 - 1899)

George Swinnerton Parker (1866 - 1952)

Fess Parker (1924 - 2010)

Sir Charles Algernon Parsons (1854 - 1931)

Ralph M. Parsons (1896 - 1974)

Ralph M. Parsons (1896 - 1974)

John H. Patterson (1844 - 1922)

Sir John Dean Paul (1970 - 1970)

Edwin W. Pauley (1903 - 1981)

Allen Eugene Paulson (1922 - 2000)

Robert Paxton (1902 - 1980)

Sir Cyril Arthur Pearson (1866 - 1921)

William Peet (1847 - 1934)

Sir Henry Mill Pellatt (1859 - 1939)