Franklin Sumner Earle (1856–1929) was an Americanmycologist. He specialized in the diseases and cultivation of the sugar cane. He was the first mycologist to work at the New York Botanical Garden, and was the author of The Genera of North American Gill Fungi.
Soon after college, Earle served as the superintendent of the Mississippi Agriculture Experiment Station (1892–1895). Soon after that Earle worked as a biologist and horticulturist of the Alabama Agriculture Experiment Station (1895–1900).