DeWitt is a shortened anglicized form of De Witt. It may refer to:
Bill DeWitt (1902–1982), American baseball executive
Blake DeWitt (born 1985), American baseball player
Bryce DeWitt (1923–2004), American physicist
Charles DeWitt (1727–1787), American politician
Charles G. DeWitt (1789–1839), American politician
Charles W. DeWitt, Jr. (born 1947), American politician
David DeWitt, American computer science professor
Doug DeWitt (born 1961), American boxer
Helen DeWitt (born 1957), American novelist
John DeWitt (athletics) (1881–1930), American track and field athlete
John H. DeWitt, Jr. (1906–1999), American radio broadcasting pioneer
John L. DeWitt (1880–1962), American general
Joyce DeWitt (born 1949), American actor
Lew DeWitt (1938–1990), American country musician
Matt DeWitt (born 1977), American baseball player
Rosemarie DeWitt (born 1974), American actress
S.A. "Sam" DeWitt (1891–1963), American poet and socialist politician
William DeWitt, Jr. (born 1941), American businessman
DeWitt Clinton (1769–1828), Governor of New York 1817–1822 and 1825–1828
DeWitt Clinton Littlejohn (1818–1892), Speaker of the New York Assembly 1855, 1857 and 1859–1861
DeWitt Wallace (1889–1981), co-founder of Reader's Digest
DeWitt Ray Austin IV (Born 1985), Goldsmith and Founder of Third Eye Assembly, LLC
Abby DeWitt, character from Under the Dome
Alexandra DeWitt, character from Green Lantern comic series
Booker DeWitt, character from BioShock Infinite
Morgan DeWitt, character from The Bold and the Beautiful
DeWitt (name) Wikipedia (Text) CC BY-SA