Wittrock is a surname of North German origin. People with the surname include:
Carl Wittrock (born 1966), Dutch composer, conductor, and musician Finn Wittrock (born 1984), American actor and screenwriter Hugo Wittrock (1873–1958), Baltic German merchant and political figure Merlin Wittrock (1931–2007), American educational psychologist Veit Brecher Wittrock (1839–1914), Swedish botanist