Dewey is a surname. Notable people with the surname include:
A. Peter Dewey (1916–1945), American soldier
Charles Almon Dewey (1877–1958), American judge
Charles Melville Dewey (1849–1937), American painter
Charles S. Dewey (1880–1980), American politician
Chester Dewey (1784–1867), American scientist
C. Ernest Dewey (1861-1945), American politician
Davis Dewey (1858–1942), American economist
Edward H. Dewey (1837–1904), American doctor
Edward R. Dewey (1895–1978), American economist
George Dewey (1837–1917), American admiral
Heather Dewey-Hagborg (born 1982), American artist and educator
James Dewey, MP for Dorset 1656, and Wareham 1659
John Dewey (1859–1952), American philosopher and educator
John Frederick Dewey (born 1937), British geologist
John J. Dewey (died 1891), American territorial legislator and physician
Lyster Dewey (1865–1944), American botanist
Matthew Dewey (born 1984), Australian composer
Melvil Dewey (1851–1931), American librarian
Nicholas Dewey, Australian poet
Nelson Dewey (1813–1889), American politician
Orville Dewey (1794–1882), American clergyman
Rob Dewey (born 1983), Scottish rugby player
Sheila Dewey, British playwright
Thomas B. Dewey (1915–1981), American author
Thomas E. Dewey (1902–1971), American 47th Governor of New York
Travis Dewey aka "Fingar Pickingood", American musician and entertainer
Fictional characters:
Billy Dewey, fictional character in the television series Southland
Ms. Dewey, fictional character in a viral marketing campaign for Microsoft Live Search
Dewey, Cheatem & Howe, fictional law firm
