Haddou is a surname. Notable people with the surname include:
Insaf Zoubida Haddou (born 1992), Algerian female volleyball player Ismaël Haddou (born 1996), Algerian footballer Jadour Haddou (born 1949), Moroccan middle-distance runner Madjid Ben Haddou (born 1975), Algerian footballer Moulay Haddou (born 1975), Algerian footballer Nadir Haddou (born 1983), French cyclist Saïd Haddou (born 1982), French cyclist Yassine Haddou (born 1989), French footballer Jamoul (born Jamila Haddou in 1999), Moroccan singer