Khaldoon, Khaldoun, or Khaldun () is an Arabic masculine given name and surname. Notable people with the name include:
Given name Khal Asfour, Australian politician and mayor Khaldoon Majid Abdullah (born 1963), Iraqi-Australian Mandaean priest Khaldoon Gharaibeh (born 1968), Jordanian cartoonist Khaldoon Al Mubarak (born 1976), Emirati businessman Khaldoon Sabra (born 2004), Jordanian footballer Khaldoun Baghdadi (born 1973), Palestinian-American attorney Khaldoun Ibrahim (born 1987), Iraqi footballer Khaldoun Al-Khashti (born 1970), Kuwaiti handball player Khaldoun Al-Khawaldeh (born 1991), Jordanian footballer Khaldoun Al-Khuzami (born 1990), Jordanian footballer Khaldoun Moussa (born 1999), Qatari footballer Khaldoun Al Tabari (born 1950), Jordanian businessman Khaldoun Talhouni, Jordanian diplomat
Surname Ibn Khaldun (1332–1406), Tunisian historian and philosopher