Frederick or Fred Gregory may refer to:
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Frederick D. Gregory
Frederick Drew Gregory (born January 7, 1941) is a former United States Air Force pilot, military engineer, test pilot, and NASA astronaut as well as former NASA Deputy Administrator. He also served briefly as NASA Acting Administrator in early ...
(born 1941), United States Air Force pilot and NASA astronaut
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Frederick Gugenheim Gregory (1893–1961), British botanist and plant physiologist
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Fred Gregory (footballer, born 1886) (1886–1937), English footballer
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Fred Gregory (footballer, born 1911) (1911–1985), English footballer
{{hndis, Gregory, Frederick