Dicker is a surname. Notable people with the surname include:
Cintia Dicker (born 1986), Brazilian model
Fred Dicker (21st century), American radio host
Fredric U. Dicker (21st century), American columnist
Friedl Dicker-Brandeis (1898–1944), Austrian artist and educator murdered by the Nazis in the Auschwitz-Birkenau extermination camp
Gary Dicker (born 1986), Irish footballer
John Dicker (1815-1895), English cricketer
Les Dicker, (born 1926), English professional footballer
Ruth Dicker (1919-2004), American painter
Samuel Dicker (died 1760), English politician
