Denby is a surname. Notable people with the surname include:
Charles Denby (disambiguation), several people including:
Charles Harvey Denby (1830–1904), U.S. Civil War officer, diplomat in China
Charles Denby, Jr. (1861–1938), U.S. diplomat, scholar of Chinese culture
David Denby (academic), Irish academic, senior lecturer in French
David Denby (film critic) (born 1943), U.S. journalist, film critic for The New Yorker
Edwin Denby (disambiguation), several people including:
Edwin Denby (poet) (1903–1983), U.S. poet, novelist, dance critic
Edwin Denby (politician) (1870–1929), U.S. politician, Secretary of Navy, noted in the Teapot Dome Scandal
John Denby (active 1910s), English footballer
Joolz Denby (born 1955), British poet and novelist
Kara Denby (born 1986), U.S. swimmer
