Rite: Roman (Latin)
Type: Titular Episcopal See
Name: Theodosiopolis in Armenia (latine) / Teodosiopoli di Armenia (Italiano) / Theodosiopolitan(us) in Armenia (Latin)
Location: Erzerum, pr. Armenia III, m. Camaco, Turkiye
- Established as Titular Episcopal See of Theodosiopolis (latine) / Teodosiopoli (Italiano)
- 1926: Renamed as Titular Episcopal See of Theodosiopolis (latine) / Teodosiopoli di Cappadocia (Italiano)
- 1929: Renamed as Titular Episcopal See of Theodosiopolis (latine) / Teodosiopoli di Armenia (Italiano)
- 1933: Renamed as Titular Episcopal See of Theodosiopolis in Armenia (latine) / Teodosiopoli di Armenia (Italiano) / Theodosiopolitan(us) in Armenia (Latin)