Diocese of Beirut

Diocese of Beirut or Eparchy of Beirut may refer to:


 * Syriac Catholic Diocese of Beirut, patriarchal diocese of the Syriac Catholic Church, centered in Beirut
 * Chaldean Catholic Diocese of Beirut, a Chaldean Catholic diocese, centered in Beirut
 * Roman Catholic Diocese of Beirut, former (medieval) Roman Catholic diocese, centered in Beirut

It may also refer to:
 * Armenian Apostolic Diocese of Lebanon, an Armenian Oriental-Orthodox diocese, centered in Beirut