Hatziioannou

Hatziioannou or Haji-Ioannou (Χατζηιωάννου) is a Greek surname. Notable people with the surname include:


 * Clelia Haji-Ioannou (born 1970/71), Cypriot billionaire
 * Leon Hatziioannou (born 1965), Canadian football player
 * Loucas Haji-Ioannou (1927–2008), Greek-Cypriot shipping entrepreneur
 * Polys Haji-Ioannou (born 1959/60), Cypriot billionaire
 * Stelios Haji-Ioannou (born 1967), British Cypriot billionaire