Cyriacus can be celebrated on 2 feasts in the Orthodox calendar. People keep the feast of the saint they were named for, or the one their family has always kept.
Every feast on which Cyriacus is celebrated
| New Calendar | Feast | Old Calendar (civil date) |
|---|---|---|
| January 31 | Cyrus and John | February 13 |
| September 29 | Cyriac the Hermit | October 12 |
The saints behind the name

Cyrus and John
January 31, Martyr, Κύρος και Ιωάννης
Sts. Cyrus and John are honored among the Holy Unmercenaries, physicians who healed in the name of Christ without accepting payment. Cyrus was a physician of Alexandria and John a soldier who joined him; together they served the sick and strengthened the persecuted during the persecution of Diocletian at the beginning of the fourth century.

Cyriac the Hermit
September 29, Venerable, Κυριακός
St. Cyriacus the Hermit was a Palestinian ascetic of the fifth and sixth centuries. Coming to the Holy Land as a young man, he passed his long life in the desert of Judea in the communities founded by the great desert fathers, advancing ever deeper into solitude, fasting, and unceasing prayer, and attaining great old age.
Also celebrating with Cyriacus
These names share the feast, many of them other forms of the same name:
What to say on a name day
The Greek wish is Χρόνια Πολλά (Chronia Polla), “many years.” A call or a short message on the day is what people remember. See name day wishes you can send and what a name day is.