Diamantopoulos or Diamandopoulos () is a Greek surname. The feminine form is Diamantopoulou (Διαμαντοπούλου). It may refer to:
(born 1958), Greek-British business scholar Anna Diamantopoulou (born 1959), Greek politician Athanasios Diamandopoulos (born 1943), Greek physician Chris Diamantopoulos (born 1975), Canadian actor , fighter of the Greek War of Independence , Greek football player , Greek basketball player and coach (1914–1995), Greek painter Dimitris Diamantopoulos (born 1988), Greek association football player (born 1980), Greek MP elected in June 2012 , fighter of the Greek War of Independence Giorgos Diamantopoulos (born 1980), Greek basketball player (1905–1993), Greek physician and politician Stavros Diamantopoulos (born 1947), Greek football manager Takis Diamantopoulos (born 1939), Greek photographer , Greek political scholar Vasilis Diamantopoulos (1920–1999), Greek actor