Rite: Roman (Latin)
Type: Titular Episcopal See 
Name: Ptolemais in Libya (latine) / Tolemaide di Libia (Italiano) / Ptolemaiden(sis) in Libya (Latin)
Location: ruins of Tolmeta, pr. Libia Pentapolitana, Libya
- 1909: Established as Titular Archiepiscopal See of Ptolemais antea Syis (latine) / Tolemaide (Italiano)
- 1913: Demoted as Titular Episcopal See of Ptolemais (latine) / Tolemaide (Italiano)
- 1922: Promoted as Titular Archiepiscopal See of Ptolemais (latine) / Tolemaide di Libia (Italiano)
- 1925: Demoted as Titular Episcopal See of Ptolemais (latine) / Tolemaide di Libia (Italiano)
- 1933: Renamed as Titular Episcopal See of Ptolemais in Libya (latine) / Tolemaide di Libia (Italiano) / Ptolemaiden(sis) in Libya (Latin)
Archbishop Cyril Vasil’, S.J. (59) (2009.05.07 – 2021.06.24)
