Charles Buchanan may refer to:
Charles Pakenham Buchanan (1874–1924), mayor of Brisbane, Queensland Charles James Buchanan (1899–1984), high sheriff of Nottinghamshire Charles P. Buchanan (1898–1984), publisher and manager at the Savoy Ballroom in Harlem, New York City Charles Allen Buchanan (1904–2001), commandant of midshipmen at the United States Naval Academy Rev. Charles Buchanan, a character in the American television show The 5 Mrs. Buchanans