Frederick Humphreys
Frederick or Fred Humphreys may refer to:
- Frederick K. Humphreys, American physician; founder of Humphreys Homeopathic Medicine Company
- Frederick Humphreys (athlete), British tug of war competitor and sport wrestler
- Frederick E. Humphreys, one of the original three military pilots trained by the Wright brothers
- Fred Humphreys, Australian government official, amateur photographer and botanist