Andreou (Greek: Ανδρέου [an̪ˈðre̞u]), also spelt Antreou, is a common surname in Greece and Cyprus. It originally meant son of Andrew or son of Andreas. Andreou or Andreu is also a last name in Spain and Italy. Andreou is of pre-Christian Greek origin although in Western Europe it gained popularity during the Crusades (mostly in the form of Andrew) and was also one of the earliest settler names in America.
Andreou may refer to: