• Adriaan de Groot (1914-2006), Dutch chess master and psychologist
• Bob de Groot (born 1941), Belgian comic book writer
• Boudewijn de Groot (born 1944), Dutch singer and songwriter
• Daan de Groot (1933-1982), Dutch road bicycle and track cyclist
• Dick de Groot (born 1920), Dutch painter and sculptor
• Francis de Groot (1888-1969), Irish Colonel who "upstaged" New South Wales Premier, Jack Lang
• Frederik de Groot (born 1946), Dutch actor
• Hugo de Groot (aka Huig de Groot), a Dutch jurist and poet
• Hugo de Groot (music) (1897-1986), a Dutch composer and conductor
• Myra De Groot (1937-1988), English-Australian actress
• Nicholas de Groot (born 1975), Canadian cricket player
• Petrus Hofstede de Groot (1802-1886), Dutch theologian
• Robin De Groot, Canadian designer
• Roy Andries De Groot (1910-1983), British and American food writer

See also

• Groot