It was named Archdiocese of Amalfi until parts of the Diocese of Cava e Sarno were merged with it on September 30, 1986.

[1][2] It was exempt, i.e. directly dependent on the Holy See, but is now a suffragan of the Roman Catholic Archdiocese of Salerno-Campagna-Acerno.

That it was early is a reasonable conjecture, considering the facilities for communication with the East which the South of Italy possessed.

The first indication that Amalfi was a Christian community is supplied by Pope Gregory the Great, who wrote in January 596 to the Subdeacon Antemius, his legate and administrator in Campania, ordering him to constrain within a monastery Primenus, Bishop of Amalfi, because he did not remain in his diocese, but roamed about.

It was raised to Metropolitan Archbishopric of Amalfi by Pope John XV in 987, having lost territory to establish the dioceses of Capri, of Lettere, of Minori and of Scala.