Hadji may refer to:
People:
- El Hadji Diouf (born 1981), Senegalese footballer
- El Hadji Guissé, Senegalese judge
- Hadji Murad (circa 1790–1852), Caucasian leader
- Ismail Hadji Maulvi-Mohammed (1781–1831), Muslim reformer
- Marios Hadjiandreou, Cypriot athlete
- Mustapha Hadji (born 1971), Moroccan international footballer
- Nikos Hatzis (born 1976), Greek basketball player
- Tony Hatzis (born 1986), Australian footballer
- Youssouf Hadji (born 1980), Moroccan footballer
Fictional characters:
- Hadji (character), a character in the American television cartoon series Jonny Quest
Songs:
- Hadji girl, a song