Al-Qadi
Al-Qadi is an Arabic surname. Notable people with the surname include:

 Abd al-Majeed al-Qadi (born 1934), Yemeni playwright and writer
 Ahmad Ibn al-Qadi (1552/3–1616), Moroccan writer
 Ayad Alkadhi (born 1971), Iraqi-American artist
 Isam al-Qadi (died 2006), Palestinian politician
 Fayez Rashid Ahmed Hassan Al-Qadi Banihammad (1977–2001), Emirati hijacker of United Airlines Flight 175 as part of the September 11 attacks 
 Naif Al-Qadi (born 1979), Saudi footballer
 Yasin al-Qadi (born 1955), Saudi businessman and terror suspect
 Qadi Ayyad (1083–1149), Imam and later judge of the Almoravid Empire 

Arabic-language surnames