Mattei

Mattei may refer to:


 * Mattei (surname)
 * Mattei, California
 * Mattei family, noble Roman family
 * The Mattei Affair (Italian: Il Caso Mattei), a 1972 film
 * Mattei sarcophagus I, known as Mattei I
 * Electrohomeopathy, also Mattei cancer cure