Hephaestus, Egypt
Hephæstus was a town in Roman Egypt, in the province of Augustamnica Prima, the eastern part of the Nile Delta.
The name Hephæstus is known only from ecclesiastical sources; its Egyptian name and its site are unknown.The original diocese was in Augustamnica Prima, a suffragan of Pelusium.
It is mentioned by Hierocles and by George of Cyprus, as among the thirteen towns of Augustamnica Prima.
Le Quien mentions only two bishops: John, who took part in two Councils of Ephesus, and Peter, present at the Council of Constantinople in 459.
It remains a Roman Catholic titular see.