Mattei can refer to:
Places:
- Mattei, California
Noble families:
- Mattei (Rome), noble Roman family
People:
- Bruno Mattei, Italian movie director
- Enrico Mattei, Italian public administrator who created ENI
- Fernando Matthei, Chilean airforce commander and junta member
- Evelyn Matthei, Chilean right-wing politician
- Giovanni Ettore Mattei (1865-1943) Italian botanist (Italian Wikipedia)
- Janet Akyüz Mattei, Turkish-American astronomer
- Ugo Mattei, professor at the University of Torino
- Olga Elena Mattei, Colombian Poet