David Geoffrey Chandler (15 January 1934 – 10 October 2004) was a British historian whose study focused on the Napoleonic era. As a young man he served briefly in the army, reaching the rank of captain, and in later life he taught at the Royal Military Academy Sandhurst. Oxford University awarded him the D. Litt. in 1991. He held three Visiting Professorships: at Ohio State in 1970, at the Virginia Military Institute in 1988, and Marine Corps University in 1991.