•
Charles Allen (jurist) (1827–1913), American judge in Massachusetts •
Charles Herman Allen (1828–1904), American educator and academic administrator • Charles
Grant Allen (1848–1899), Canadian science writer and novelist •
Charles B. Allen (fl. 1850), American founder of "Order of the Star Spangled Banner" secret society •
Charles Metcalf Allen (1871–1950), American hydraulic engineer •
Charles Elmer Allen (1872–1954), American botanist •
Charles Allen (RAF officer) (1899–1974), British World War I flying ace •
Charles L. Allen (1913–2005), American minister •
Charles M. Allen (1916–2000), U.S. federal judge •
Charles E. Allen (born 1936), American intelligence official at the CIA and Department of Homeland Security •
Charles Allen (writer) (1940–2020), British writer and historian •
Charles Allen, Baron Allen of Kensington (born 1957), English businessman •
Charles M. Allen (engineer), Maxim Integrated applications engineer ==See also==