Holy Martyr Diogenes, who was stoned for Christ.
The holy martyr Diogenes confessed Christ before the pagans and, according to the Synaxarion, was perfected by stoning. His name is kept on this day in the Greek calendar.
Feast day
On the New Calendar, Diogenes the Martyr is commemorated on December 5. Churches on the Old (Julian) Calendar keep the feast on December 18 of the civil calendar.
Who celebrates a name day
People with these names keep their name day on this feast:
Also commemorated on December 5

Savvas the Sanctified
Venerable, Σάββας ο Ηγιασμένος
Venerable Sabas the Sanctified, founder of the Great Lavra near Jerusalem.
Nektarios the Athonite
Venerable, Νεκτάριος ο Αθωνίτης
Venerable Nektarios of Bitola, ascetic of Karyes on Mount Athos.
Philotheos of Karyes
Venerable, Φιλόθεος ο Καρεώτης
Venerable Philotheos, hesychast of Karyes on Mount Athos.
Cosmas the Protos and the Martyrs of Karyes
Martyr, Κοσμάς ο Πρώτος
Cosmas the Protos of the Holy Mountain and the monks of Karyes martyred by the Latinizers.