Sabina’s name day is March 11, the feast of Pionios and Sabina.
Churches that follow the Old (Julian) Calendar keep the same feast on March 24 of the civil calendar. See everything commemorated on March 11.
The saint behind the name
Pionios and Sabina
March 11, Hierarch, Πιόνιος
St. Pionios was a presbyter of Smyrna who was arrested with several companions in the third century, on the anniversary of the martyrdom of St. Polycarp. His defense before the authorities, in which he refused every inducement to sacrifice, is preserved in an ancient account of his martyrdom.
Also celebrating on March 11
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.