Colonel Joseph Franklin Siler, MD (1875–1960) was a U.S. Army physician noted for investigations of mosquito transmission of dengue fever in the Philippines and for Marijuana Smoking in Panama, one of the first experimental reports on cannabis.^[1]

Siler was commander the Laboratory Service in the American Expeditionary Forces in France in World War I and undertook extensive experimental observations on the manufacture and immunizing efficacy of anti-typhoid vaccines.