Rite: Roman (Latin)
Type: Titular Episcopal See
Name: Porphyreon (latine) / Porfireone (Italiano) / Porphyrien(sis) (Latin)
Location: between Haifa and Acca, pr. Fenicia I, m. Tiro, Israel
- Established as Titular Episcopal See of Porphyreon (latine) / Porfireone (Italiano) / Porfirio (Italiano)
- 1925: Renamed as Titular Episcopal See of Porphyrium (latine) / Porfireone (Italiano) / Porfirio (Italiano) / Porphyreon (latine)
- 1929: Renamed as Titular Episcopal See of Porphyreon (latine) / Porfireone (Italiano) / Porfirio (Italiano)
- 1933: Renamed as Titular Episcopal See of Porphyreon (latine) / Porfireone (Italiano) / Porphyrien(sis) (Latin)