Rite: Roman (Latin)
Type: Titular Episcopal See
Name: Thebæ Phthiotides (latine) / Tebe di Ftiotide (Italiano) / Theban(us) in Phtiotide (Latin)
Location: pr. Tessalia I, m. Larissa, Greece
- Established as Titular Episcopal See of Halmiros (latine) / Almira (Italiano) / Almiren(sis) (Latin)
- 1925: Renamed as Titular Episcopal See of Halmyrus (latine) / Almira (Italiano) / Almiro (Italiano) / Almiren(sis) (Latin)
- 1933: Renamed as Titular Episcopal See of Thebæ Phthiotides (latine) / Almiro (Italiano) / Halmyrus (Italiano) / Tebe di Ftiotide (Italiano)
- 1946: Renamed as Titular Episcopal See of Thebæ Phthiotides (latine) / Tebe di Ftiotide (Italiano) / Theban(us) in Phtiotide (Latin)