Charles Lyon Chandler (December 29, 1883 – June 29, 1962) was an American consul and historian of Latin America–United States relations. A Harvard graduate who came to South America in the Consular Service, he became a student and proponent of Pan-Americanism. His pioneering 1915 book Inter-American Acquaintances proposed a new, Pan-American origin for the Monroe Doctrine. After being denied a permanent diplomatic appointment he worked for the Southern Railway and the Corn Exchange Bank; at the same time he became a respected independent scholar who helped found the Hispanic American Historical Review. Beside many articles on early inter-American relations, he co-authored an unpublished biography of Joel Roberts Poinsett. During World War II he worked in Brazil for the U.S. government, and