DeGroot is an agglutinated form of the Dutch surname De Groot. It may refer to:
People Bruce DeGroot (born 1963), American politician Chad DeGroot (born 1974), American freestyle BMX rider
Diede de Groot (born 1986), Dutch Tennis Grand Slam Champion Dudley DeGroot (1899–1970), American athlete and coach Gerard DeGroot, author of the 2008 book The Sixties Unplugged
Morris H. DeGroot (1931–1989), American statistician
Characters Gerald and Karen DeGroot, characters on the American television show Lost LuAnn DeGroot, main character of the comic strip Luann
See also De Groot, a surname De Groote, a surname Groot (surname)