- Powell, Colin Powell, Colin luther Powell - United States general who was the first Black to serve as Chief of Staff; later served as Secretary of State under President George W. Bush (born 1937)
--1 is a kind of general, full general; statesman, solon, national leader
- Powell, Cecil Frank Powell - English physicist who discovered the pion (the first known meson) which is a subatomic particle involved in holding the nucleus together (1903-1969)
--2 is a kind of physicist